Stock with less risk
Know what performs before committing money to full reels that may sit on the shelf.
The Stringer's Test Kit
Test 8 pro strings before you stock a full reel.
8 strings · $79 · +$30 credit toward your next order
Test the YTEX range, discover which strings perform best for the players you serve, and recommend with confidence — before committing to full-reel inventory.
Worth $135
$79
Save $56
Includes a $30 YTEX Gift Card
Redeem it on your next order — your effective kit cost drops to $49.
For professional stringers, pro shops, coaches and serious players who buy string regularly.
Secure checkout
Fast shipping from the U.S.
German-made co-polys
#1 for spin
Quadro Twist — USRSA test of 200 strings
700+ reviews
96% rate YTEX 5 out of 5 on Judge.me
Made in Germany
Soft co-polys engineered to be easy on the arm
50+ countries
Trusted by stringers worldwide
Why stringers choose it
Stop guessing which strings to stock.
Buying the wrong reel can tie up $150+ in inventory that never moves. Test the range for $79 first — then stock only what your players ask for.
Recommend with confidence
Test the strings yourself, then confidently recommend the right setup to every customer — from first-hand experience, not spec sheets.
Grow repeat business
When customers find a string they love, they come back for the same setup again and again — on your machine.
What's in the box
Eight strings. Eight solutions.
Full 40 ft sets — each strings one standard racquet — covering the playing characteristics stringers encounter every day.
Quadro Twist
Top Spin + Comfort
16L · 1.26 mm · 4-sided twisted
Our flagship soft co-poly — ranked #1 for spin by the USRSA — with exceptional feel and an arm-friendly response.
View Quadro Twist
Square-X Sharp
Maximum Ball Bite
18 · 1.15 mm · sharp square
A thin, sharp-edged co-poly designed for aggressive spin and exceptional access to rotation.
View Square-X Sharp
Hexagon-X
Control + Durability
16 · 1.28 mm · 6-sided
A six-sided co-poly offering precise control, solid spin and dependable tension retention.
View Hexagon-X
ProTour
Power + Control + Feel
17L · 1.18 mm · round
A versatile round soft co-poly with a balanced blend of power, control, tension stability and feel.
View ProTour
Triangle Twisted
Power + Spin
16L · 1.28 mm · 3-sided twisted
A twisted triangular profile that adds ball bite, power and excellent directional control.
View Triangle Twisted
Square-X
Comfortable Shaped Poly
16L · 1.25 mm · square
A soft square-profile co-poly providing spin, ball pocketing, controlled power and strong snapback.
View Square-X
Penta Power
Controlled Power
16L · 1.28 mm · 5-sided
A durable five-sided performance string for frequent hitters seeking dependable power and control.
View Penta Power
Pro-Feel
Touch + Comfort
16 · 1.27 mm · soft round
A softer string option for players who prioritize feel, touch and a comfortable response.
View Pro-FeelSwipe to see all 8 strings →
Compare at a glance
Which strings should you stock?
Every string in the kit, side by side — with the customer type each one is built for, so you know exactly what to recommend and stock.
| String | Profile · Gauge | Recommend to | Spin | Control | Power | Comfort | Durability |
|---|---|---|---|---|---|---|---|
| Quadro Twist | 4-sided twisted · 16L / 1.26 | Aggressive baseliners | |||||
| Square-X Sharp | Sharp square · 18 / 1.15 | Heavy topspin players | |||||
| Hexagon-X | 6-sided · 16 / 1.28 | Hard hitters · control first | |||||
| ProTour | Round · 17L / 1.18 | All-court players | |||||
| Triangle Twisted | 3-sided twisted · 16L / 1.28 | Attacking intermediates | |||||
| Square-X | Square · 16L / 1.25 | Poly players who want comfort | |||||
| Penta Power | 5-sided · 16L / 1.28 | Frequent string breakers | |||||
| Pro-Feel | Soft round · 16 / 1.27 | Arm-sensitive · touch players |
Quadro TwistAggressive baseliners
Square-X SharpHeavy topspin players
Hexagon-XHard hitters · control first
Triangle TwistedAttacking intermediates
Square-XPoly players who want comfort
ProTourAll-court players
Penta PowerFrequent string breakers
Pro-FeelArm-sensitive · touch players
Hexagon-XHard hitters · control first
Quadro TwistAggressive baseliners
Square-X SharpHeavy topspin players
ProTourAll-court players
Triangle TwistedAttacking intermediates
Square-XPoly players who want comfort
Penta PowerFrequent string breakers
Pro-FeelArm-sensitive · touch players
Penta PowerFrequent string breakers
Square-X SharpHeavy topspin players
ProTourAll-court players
Triangle TwistedAttacking intermediates
Square-XPoly players who want comfort
Pro-FeelArm-sensitive · touch players
Quadro TwistAggressive baseliners
Hexagon-XHard hitters · control first
Quadro TwistAggressive baseliners
ProTourAll-court players
Square-XPoly players who want comfort
Pro-FeelArm-sensitive · touch players
Square-X SharpHeavy topspin players
Hexagon-XHard hitters · control first
Triangle TwistedAttacking intermediates
Penta PowerFrequent string breakers
Hexagon-XHard hitters · control first
Square-XPoly players who want comfort
Penta PowerFrequent string breakers
Quadro TwistAggressive baseliners
ProTourAll-court players
Triangle TwistedAttacking intermediates
Pro-FeelArm-sensitive · touch players
Square-X SharpHeavy topspin players
Sorted best-first for the selected trait
All sets are 40 ft / 12 m — one standard racquet per set. Ratings
reflect YTEX performance profiles relative to the strings in this kit.
YTEX Premium Gift Card
$30
For your next order
How stringers use the kit
Start testing YTEX →
Test the strings. Then stock your winners.
Your kit includes a $30 YTEX Gift Card for a future order. After testing the eight strings, put the credit toward sets or reels of the strings your customers ask for most — which brings your effective kit cost down to $49.
1
Test — play the strings yourself or with your customers.
2
Identify — find which strings match the playing styles you see most.
3
Recommend — match the right string to each customer’s game.
4
Stock — order reels of the strings with real demand.
5
Reorder — use your $30 credit and build repeat setups.
The complete offer
Everything you get for $79.
Eight premium YTEX string sets (40 ft each)
$105 value
YTEX gift card for your next order
$30 value
Total value
$135
Your price
$79
Effective cost after gift card*
$49
*When you redeem the $30 gift card on a future YTEX order.
From the stringing community
Stringers already run YTEX.
"I can test the strings myself, understand how they play, and confidently recommend them to my customers."
"It's truly the best string I've ever played with."
"Hexagon-X red has become my go-to string after trying quite a few others."
Frequently asked questions
Good questions.
Who is this kit designed for?
Professional racquet stringers, tennis coaches, clubs, pro shops and serious players who want to experience a broad range of YTEX strings before committing to reels.
Are these full string sets?
Yes. Each package is a complete 40 ft / 12 m set — enough to string one standard tennis racquet.
How does the $30 gift card work?
The gift card is included with your kit for use on a future YTEX order — it is not deducted from the $79 kit price. Redeem it at checkout on your next purchase of sets or reels. It does not expire and has no minimum order.
Do you ship internationally?
Yes — YTEX ships from the U.S. to customers in 50+ countries. Shipping options and rates are shown at checkout. International orders may be subject to local import duties and taxes.
Can I buy full reels of these strings?
Yes. Every string in the kit is available as a 660 ft / 200 m reel — that's the whole point: test the sets, then stock reels of the strings your players prefer, using your $30 gift card.
Can I choose different strings?
The kit features the eight listed strings, selected to cover the full range of spin, control, comfort, power, feel and durability in one box.
How do I purchase the kit?
Any "Get the Stringers Kit" button adds the kit straight to your cart — from there you complete a secure Shopify checkout.
Limited kit · Ships fast
Discover the YTEX difference.
Eight premium strings, a $30 gift card and a smarter way to decide what belongs in your stringing business — for only $79.
Get the Stringers Kit →