Spring Load
It allows the molecular chains to contract repeatedly, with minimal tension loss and greater stability of properties over time.
Arm Friendly®
String Project Rocket
Power and spin, no compromises.
String Project Rocket is an elastic, explosive Soft Polyester monofilament tennis string, designed for those seeking top-level power and spin without giving up comfort. Treated with Alpha-olefins and finished with Liquid Wax, it combines great elasticity with very high snap-back: it is the string for those who want to take command of the rally with heavy shots and aggressive spin.
8.5/10
Comfort
10/10
Spin
9/10
Power
Technical Specifications and On-Court Ratings
Explosive Power and Devastating Spin
String Project Rocket offers top-of-the-category spin (10/10), which comes from its elasticity and very high snap-back, helped by the Liquid Wax finish. Power (9/10) is explosive and comes from the elasticity of Soft Polyester treated with Alpha-olefins. Arm Friendly® comfort (8.5/10) makes itself felt even in the most intense playing sessions.
Power9/10
Comfort8.5/10
Control7/10
Resilience9/10
Spin10/10
Tension7/10
Ratings measured in the laboratory by Pro-t-one (Eng. G. Medri), as are the technical specifications.
Explosive, yet Gentle on the Arm
Rocket is an Arm Friendly® (comfort 8.5/10) monofilament: the softness of Soft Polyester lets it hit hard without the stiffness typical of a monofilament.
Technical Data Sheet
- Cross-section
- Round
- Available gauges
- 1,25 mm (16L) · 1,30 mm (16)
- Dynamic stiffness
- 225 g/mm
- String Stiffness Emulator
- 205 lb/in
- Static stiffness
- 0.72 kg/mm
- Tension range
- 18 / 24 Kg
Laboratory test report · Pro-t-one (Eng. G. Medri)
Advanced Technology for Explosive Performance
Rocket's manufacturing process, based on multiple heat treatments, gives the string great elasticity and a very fast return to position (snap-back). Its Soft Polyester composition, treated with Alpha-olefins, ensures superior softness and elasticity compared to traditional polyesters. The Liquid Wax finish increases snap-back: it is the combination of elasticity and snap-back that generates the 10/10 spin.
The manufacturing processes
Double Heating
The heat treatments remove internal stresses and any irregularities in the string, making it more uniform, flexible and elastic.
Liquid Wax
The string is finished with a layer of wax, which reduces wear, significantly extends its lifespan and makes stringing easier.
Low Friction
Reducing friction offers three advantages: less string movement, greater spin potential thanks to better snap-back, and a longer lifespan.
An Explosive Character on Court
On court, Rocket stands out for its exuberant, dynamic character. It lets you exploit the intensity of shots and spin naturally, as if power were an always-available reserve. Topspin is facilitated and maximised: Rocket performs best with aggressive rotation, delivering heavy shots that drop quickly into the opponent's court. The ideal tension is around 21 kg, within the recommended range of 18-24 kg.
Arm Friendly® Comfort
The softness of Soft Polyester, combined with multiple heat treatments, reduces the vibrations transmitted to the arm.
- Reduced vibrations to the arm
- Extended sessions with less fatigue
- Suitable for players of all ages
- Soft Polyester with heat treatments
Extreme Power and Spin
Elastic and explosive, Rocket combines easy power with very high snap-back: this is where its spin (10/10) and powerful shots (9/10) come from.
- Spin 10/10
- High, fast snap-back
- Heavy shots with aggressive spin
- Elastic, explosive response
What the Experts Say
Independent reviews published by testers and specialist outlets.
Who It's For
Amateurs
Those looking for easy drive and spin, finding in Rocket an ally for more effective shots with less effort. Recommended gauge: 1.25 mm for maximum elasticity.
Competitors
Those looking for a weapon with excellent ball launch and the ability to impart heavy, aggressive spin, ideal for a game built on spin and power.
Players with powerful racquets
Those with already-powerful frames can opt for the 1.30 mm gauge, which offers greater control and durability, balancing the string's exuberance.
Ready to Launch Your Game?
Choose the format that best suits your needs. Free shipping from €50.
200 m Reel
~17 stringings
-
~€6.41 per stringing
- Free shipping
- 1 Dampener
- 2x Dry Overgrip pack
Gauge:
Pack of 6 Sets
6 stringings
-
~€8.98 per stringing
- Free shipping
- 1 Dampener
- 2x Dry Overgrip pack
Gauge:
Pack of 3 Sets
3 stringings
-
~€9.97 per stringing
- Free shipping
- 1 Dampener
- 2x Dry Overgrip pack
Gauge:
Single Set
1 stringing
-
- Free shipping
- 1 Dampener
- 2x Dry Overgrip pack
Gauge:
Frequently Asked Questions (FAQ) about String Project Rocket
What is String Project Rocket?
String Project Rocket is a Soft Polyester monofilament tennis string, treated with Alpha-olefins and finished with Liquid Wax. It is designed to maximise power (9/10) and spin (10/10) while keeping Arm Friendly® comfort of 8.5/10.
At what tension should String Project Rocket be strung?
The recommended tension range is between 18 and 24 kg. The ideal tension to best express its power and spin characteristics is around 21 kg. Tensions outside the recommended range can penalise snap-back and spin generation.
Which gauges is String Project Rocket available in?
Rocket is available in 1.25 mm (16L) and 1.30 mm (16) gauges. The 1.25 gauge offers maximum elasticity and sensitivity, the 1.30 offers more control and durability.
Is String Project Rocket suitable for players with arm problems?
Yes, Rocket is Arm Friendly®, with 8.5/10 comfort. The softness of Soft Polyester and multiple heat treatments reduce vibrations transmitted to the arm, making it suitable even for sensitive players.
What is the difference between String Project Rocket and String Project Magic?
Rocket is oriented towards maximum power and spin (10/10 spin, 9/10 power), with an explosive, dynamic character. Magic is more oriented towards comfort (9/10) with a low-polyester material blend. Rocket is ideal for those seeking heavy shots with aggressive spin, Magic for those who prioritise multifilament comfort with monofilament performance.
How long does String Project Rocket last?
Rocket has 7/10 tension maintenance. Estimated durability with regular play is around 7 hours before the initial characteristics start to drop significantly. The Liquid Wax finish helps reduce wear and extend the string's life.