Spring Load
This technology allows the molecular chains to contract repeatedly, resulting in minimal tension loss and, above all, greater stability of the string's properties.
Arm Friendly®
String Project Rocket
Power and spin, no compromises.
String Project Rocket is a Soft Polyester monofilament tennis string designed for those seeking maximum power and maximum spin without giving up comfort. Treated with Alpha-olefins and finished with Liquid Wax, Rocket delivers an explosive, lively playing experience. Elastic, grippy and responsive, it is the benchmark for those who want to dominate 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), thanks to its pronounced snap-back and high-grip Liquid Wax surface. Power (8/10) is explosive and responsive, fuelled by the exceptional elasticity of Soft Polyester treated with Alpha-olefins. Arm Friendly® comfort (8.5/10) ensures arm protection even during 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.
"Arm Friendly®" Comfort
Like all strings in the String Project range, Rocket is a monofilament designed to be "Arm Friendly" (comfort 8.5/10), offering a comfortable playing sensation despite its high performance.
Technical Data Sheet
- Cross-section
- Round
- Available gauges
- 1,25 mm (16L) · 1,30 mm (16)
- Dynamic stiffness
- 225 g/mm
- Tension range
- 18 / 24 Kg
Laboratory test report · Pro-t-one (Eng. G. Medri)
Advanced Technology for Explosive Performance
Rocket's unique manufacturing process, based on multiple heat treatments, gives the string exceptional 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 creates a high-grip surface that amplifies grip on the ball.
The manufacturing processes
Double Heating
The "heat treatments" remove internal stresses and even out any irregularities in the string. They also make the strings more flexible and elastic.
Liquid Wax
The string is finished with a layer of wax. This treatment significantly extends its lifespan by reducing wear and making stringing easier.
Low Friction
Reducing the string's friction delivers: reduced string movement, greater spin potential thanks to improved 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
Despite its high performance, Rocket is an Arm Friendly® (comfort 8.5/10) monofilament. The softness of Soft Polyester, combined with multiple heat treatments, reduces vibrations transmitted to the arm.
- Reduced arm vibrations
- Extended sessions without fatigue
- Suitable for players of all ages
- Soft Polyester with heat treatments
Extreme Power and Spin
Rocket delivers an explosive, responsive playing experience, with a pronounced snap-back behind its extraordinary spin generation (10/10) and powerful shots (8/10).
- Spin 10/10, top of the category
- Pronounced, fast snap-back
- Heavy shots with aggressive spin
- Direct, communicative feel
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 extraordinary ability to impart complex spin, ideal for a game of spin and variations.
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 (8/10) 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 that are too high (23-24 kg) 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® certified 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, 8/10 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.