DUNLOP
CX 400 Demo Tennis Racquet
10349021D
Stringing Specifications For Your Demo Racquets
Tension
The majority of our demos are originally strung at 55 pounds, however, due to a shortage of inventory, we do have some variances in some of the models. We recommend confirming with a demo specialist before making any purchases.
If you have questions or need any assistance, don’t hesitate to contact us. You can reach our customer service center directly at (713)435-4816, or by email at demos@tennisexpress.com
Each brand promotes their own unique performance strings.
For more details regarding what our demos are strung with, please review the list below.
Wilson Demos
Wilson Demos
Blade V9 – Luxilon Alu Power 16L (Green/Grey)/Wilson Sensation 16G (Natural)/Luxilon Element 16L (Bronze)
Ultra V4/Clash – Full set Wilson NXT 16G (Natural)
Pro Staff V14 – Full set Luxilon 4G 16L (Black or Gold)
Shift – Full set Luxilon Alu Power 16L (Grey)/ Full set Wilson NXT 16G (Natural)
RF 01– Full set Luxilon Alu Power 16L
Babolat Demos
All Babolat demos are strung with either Hybrid or full multifilament or polyester strings.
Hybrid – (Main) Babolat RPM Rough 17G (Orange)/ Babolat RPM Blast 17G (Black)
(Cross) Babolat Xcel 16G (Natural)
Multifilament – Full set Babolat Excel 16G (Natural/Black)
Polyester – Full Bed Babolat RPM Rough 17G (Orange)/ Full Bed Babolat RPM Blast 17G (Black)/ Full Bed Babolat RPM Soft 17G (Grey)
Head Demos
Head Extreme/Speed/Radical – Hybrid – (Mains) Lynx Tour 16G/(Crosses) Velocity MLT 16G)
Legend – Full Set Head Hawk Power 17G
Head Auxetic Gravity 2023 –17G/Lynx Tour 16G Full Set
Hybrid – (Main) Head Hawk Touch 17G/Head Lynx Tour 16G/(Crosses) Head Velocity MLT 16G
Head Auxetic Boom 2.0 – Head Lynx 16G Full Set
Head Auxetic Prestige- Full set Lynx Tour 17G
Yonex Demos
All Yonex demos are strung with either full multifilament or polyester strings.
Multifilament – Yonex Rexis Speed 16L (White/Black)
Polyester – Poly Tour Pro 16G (Blue/Yellow/Black)/PolyTour Drive 16L (Grey/black)/Yonex PolyTour Rev 16 (White or orange)
Dunlop Demos
2024 CX Family – Full set Wilson NXT 16G (Natural)/Luxilon Element 16L (Bronze)
2023 FX 500, Tour, LS – Wilson NXT 16G (Natural)/Luxilon Element 16L (Bronze)
2022 SX Family – Dunlop Silk 16G (Natural)/Dunlop Explosive Speed 16G (Yellow)/Luxilon Element 16L (Bronze)
Tecnifibre Demos
T-Fight ISO – (305/315/300/295/270) – Tecnifibre Razor Code White 16G/Wilson NXT 16G (Natural) Full Set/Luxilon Element 16L (Bronze)
TF40 – Wilson NXT 16G (Natural)/ Tecnifibre Razor Code 17G (White)/Luxilon Element 16L (Bronze)
Volkl Demos
V-Cell (1-6/8/9/10/V1 OS/V1 MP/V1 Pro) – Power Fiber II 16G (Natural) / V-Cell 7 Power Fiber Pro 16G (Yellow)
V1 EVO, V1 Classic, C10 Pro Black, C10 EVO – V-Square 16G (Red)/Power Fiber Pro (Yellow)
V8 Pro 2023 – Wilson NXT 16G (Natural)
Vostra V8 – Volkl Power Fiber II 16G (Natural)
Our Shipping Policy
Get Fast, Free, Domestic Shipping for Orders Over $50
- Valid in the 48 Contiguous U.S. only. Limited time offer. Applies to In-Stock items.
- Order must have an actual or dimensional weight of 7 pounds or less.
- Offer not valid on oversized or heavy items (cases of balls, can of balls, demo racquets, etc.).
- Not valid on drop ship items like stringing machines and ball machines.
- Orders do not ship or deliver on Saturday, Sunday or select holidays.
- Most orders placed by 2pm CST will be shipped that day.
- Customers will be contacted via email or telephone with order issues or shipping delays.
- Please provide contact information where you can be reached quickly.
- We are not responsible for weather-related delays.
| Order Value (Pre-Tax) | Ground Shipping | 2 Day | Next Day |
| $0.00 - $49.99 | $5.95 | $15.95 | $29.95 |
| $50.00 - $149.99 | Free | $15.95 | $34.95 |
| $150.00 + | Free | $19.95 | $39.95 |
Alaska, Hawaii, Puerto Rico, Guam, US Virgin Islands, APO Addresses
Orders being shipped outside of the Contiguous US or APO addresses will ship by means of the United States Postal Service.
Shipping to these states will be a base price of $14.95 + $2 for each additional item.
**Shipping via USPS Priority provides minimal tracking information and normally delivers within 5-7 business days.
*** Any shipping promotions offered by Tennis Express DOES NOT apply to shipments outside of the contiguous 48 states.
Canada, Mexico, and other International Orders
At this time, Tennis Express only ships to the United States and all US Territories including Puerto Rico, US Virgin Islands, Guam and military bases. Due to manufacturer restrictions, we are unable to ship to countries outside of the United States.
Free Return Shipping When $50+ Order Value Maintained
Please click the button below for information about our 90 day return policy.
Returns and Exchanges
Our 90 Day Return Policy Tennis Express believes in providing our customers with the best selection of tennis products and innovative game improvement gear. If the products are not to your liking, please take comfort in knowing you can return or exchange unused products within 90 days of the delivery date. How to Return
Submit a return request Click the profile icon in the store's navigation
- Log in to your account:
- Click the order that you want to submit the return for.
- If your order has more than one item, then select the items that you want to return.
- Select a return reason and add a note for the store.
- Click "Submit request". If your return request is approved and requires shipping, then you receive an email with shipping instructions and a return shipping label. After the product is returned, you receive a refund.
- Orders over $50 qualifies for a free prepaid FedEx Ground shipping label if the overall value of the remaining order balance stays above $50 (pre-tax) after the return.
- Limit 1 free return label per order.
- Valid only for the continental United States.
- If your order does not qualify for free return shipping, you may still use our return portal to request, for a small fee of $6.95 will be deducted from your refund amount. Otherwise, you will be responsible for shipping any items back to us. Please keep hold of any tracking information.
Please note:QUESTIONS: If you have any questions about our return process, please contact us before shipping back you return: Returns@TennisExpress.com Shoe Returns and Exchanges
- If you use one of our prepaid labels, you may drop the shipment off at any authorized FedEx or USPS Service Station.
- Refunds will be processed within 3-5 business days from the day we receive the return.
Racquet and Paddle Returns and Exchanges
- Shoes must be in NEW and unworn condition with original product packaging.
- DO NOT use the original shoe box as the outer shipping box. This will ruin the product.
- For shoe outsole warranty claims, please visit our Shoe Warranty page.
Apparel Returns and Exchanges
- Racquets or Paddles must be in NEW and unused condition with original plastic covering the handle intact.
- Make sure any racquets or paddles are protected to safely endure shipment.
- For racquets strung at Tennis Express, the cost of the string will not be refunded.
- All sales are final on the purchase of used racquets.
- For racquet warranty claims, please visit our Racquet Warranty webpage.
Drop Ship Returns
- Apparel must be unworn, unwashed, and unused with original tags attached.
- For safety concerns, we cannot accept used or washed clothing.
- Apparel items carry NO warranty from the manufacturer.
Damages and issues
- Items shipped directly from the manufacturer must be returned to the manufacturer within 30 days of the original delivery date.
- You must request a Return Authorization (RA) from Tennis Express prior to shipping. Please email CS@TennisExpress.com with your return request.
- Drop shipped items must be in new and unused condition with original product packaging.
- Any restocking fees or return shipping costs will be paid for by the customer.
Please inspect your order upon reception and contact us immediately if the item is defective, or damaged or if you receive the wrong item so that we can evaluate the issue and make it right.
Unfortunately, we cannot accept returns on gift cards.
How To Return
1. Fill out the Return/Exchange Form and include the paperwork in your return package.
Please note, the receipt number is the order number.
2. Obtain a return shipping label and attach it to the outside of the package.
- Your return qualifies for a free prepaid FedEx Ground shipping label (CLICK HERE) if the overall value of the remaining order balance stays above $50 (pre-tax) after the return.
- Limit 1 free return label per order.
- Valid only for the continental United States.
- If your order does not qualify for free return shipping, you may still use our prepaid FedEx Ground shipping label at a cost of $6.95, deducted from your refund amount. Otherwise, you will be responsible for shipping any items back to us. Please keep hold of any tracking information.
3. Ship the return back to us.
Please note:
- If you use one of our prepaid FedEx labels, you may drop the shipment off at any authorized FedEx Service Station or FedEx Drop Off location.
- Refunds will be processed within 3-5 business days from the day we receive the return.
- Exchanges will be shipped back to you at no cost via FedEx Ground unless specified otherwise.
- Items marked "FINAL SALE" are not eligible for return or exchange.
- QUESTIONS: If you have any questions about our return process, please contact us before shipping back you return: Returns@TennisExpress.com
Our 7 Day Price Match Guarantee
This Price Match Guarantee may be requested at time of purchase by contacting one of our friendly team members at 713-435-4800 ext. 1 or email CS@TennisExpress.com
At Tennis Express we have a Price Match Guarantee so you can shop with confidence. We will gladly match any advertised price, in print or online, by an AUTHORIZED retailer for the exact item that you have purchased within the past 7 days.
Conditions of Price Match Guarantee:
- Price must be published and verified on Authorized Retailer website by Tennis Express (competitor coupons and/or one-time discounts do not qualify).
- Item must be identical brand name/make/model/size/color, and specifications.
- The item must be in stock at time of Price Match Guarantee.
- Valid up to 7-days from date of purchase.
- Price Match cannot be combined with any other promotions or coupons.
- One request per item purchased.
- Direct sales from manufacture, third-party sellers, or auction websites are exempt from this guarantee.
- Shipping and delivery fees are not eligible for Price Matching.
- Products subject to MAP policy (which are restrictions established by select manufacturers such as Babolat, Wilson, Yonex, Head, Volkl, Dunlop, Adidas, Nike, and others) do not qualify.
Eligible price adjustments will be made upon request to the original form of payment or issued as a Tennis Express e-gift card.
Tennis Express reserves the right to approve authorized retailers.
Other Exclusions:
Clearance, final sales, damaged, used, open packages, refurbished, pre-owned, or closeout products.
Product Review
Description
The Dunlop CX 400 Demo Tennis Racquet is more powerful than the CX 200 frames thanks to the thicker frame design. For the new CX series, Dunlop introduces a new racquet mold with Control Frame Geometry. The boxy frame design of the upper hoop improves the stability of the racquet face. The top of the racquet hoop features a concave design that stretches the main strings longer for greater power and spin. Sonic Core with Infinergy is embedded in positions of the head to increase power, improve comfort, and reduce shock. The 16x19 string pattern features Dunlop's Power Grid String+ technology that adds more space between the cross strings. The technology gives the CX 400 a more powerful and spin-friendly response. To make the racquet even more comfortable, Dunlop incorporated Vibroshield, an elastic vibration-dampening material at the head's 3 and 9 o`clock position and above the grip. The CX 400 is 10.1 ounces unstrung, so it will not be difficult for beginner or intermediate players to swing. The racquet`s 100-square-inch head makes the stringbed more spin-friendly than the other CX models. The CX 400 is a wonderful choice for players who seek help with control, but prefer a more crisp and powerful feel.
Features:
-Firmer flexing than the previous version for more free power.
-Redesigned frame geometry adds stability to the racquet head.
-Vibroshield and Sonic Core technologies provide a solid feel and comfortable dampening.
-100 square inch head and thicker cross-section create a crisp and powerful frame.
| Head Size: | 100 sq. in OS |
|---|---|
| Length: | 27 inches |
| Weight: | Strung - 10.6 oz / 300 g Unstrung - 10.1 oz / 285 g |
| Tension: | 40-60 Pounds |
| Balance: | 1 Pts Head Light |
| Beam Width: | 24mm |
| Composition: | Sonic Core with Infinergy / Graphite |
| Flex: | 71 |
| Grip Type: | Dunlop Synthetic |
| Power Level: | Medium |
| String Pattern: |
16 Mains / 19 Crosses Mains Skip: 8T, 8H Two Piece No Shared Holes |
| Swing Speed: | Medium, Moderate |
| Demo: | 10349021D |
| Os mp: | MP |
| String tension max: | 60 |
| String tension min: | 40 |
| Style: | 10349021 |
| Swing weight: | 312 |
