The Test Box Basic is the kit designed for those who want to discover and experience the full String Project range.
It contains a complete selection of our most representative strings, each with its own specific features, to help you find the ideal set-up.
In addition, you’ll find essential accessories to complete your game.
Kit Contents
String Project Magic 1.26 mm
The comfort of a multifilament with the performance of a monofilament. Soft and elastic, it reduces vibrations on the arm while offering responsiveness and excellent spin. For players looking for a soft string without giving up performance.
String Project Hexa Pro 1.25 mm
A solid hexagonal string that combines control and precision spin. The shaped section “grips” the ball and, together with snap-back, generates complex spin, with a good level of power and Arm Friendly® comfort.
String Project Armour 1.25 mm
A smooth monofilament, plush on impact and precise off the strings. The ball stays longer on the string bed: competition-level control and effective spin with the right swing.
String Project Armour Soft 1.24 mm
Balanced in every way and consistent over time. It is born from the Armour blend, with a higher percentage of Soft Polyester: control, spin, power and comfort, with resilience and tension maintenance at the top of the range.
String Project Sirius 1.25 mm
Precise, stable, consistent. A high-performance competition string with control as its strong point, Arm Friendly® comfort and excellent tension maintenance. For competitive players and demanding amateurs.
String Project Rocket 1.25 mm
Elastic and explosive, it’s the string that blends power and spin. Its elasticity and high snap-back deliver shots loaded with spin and a fast ball exit. Ideal for players seeking aggression and heavy trajectories.
String Project Keen 1.18 mm
Thin yet tough. It offers great feel, immediate responsiveness and remarkable spin generated by snap-back, with exceptional ball exit. A perfect choice for players who prefer thin strings without sacrificing durability and comfort.
String Project Gold 1.30 mm
The evolved multifilament: comfortable and stable. It absorbs vibrations and offers stability on the string bed, with high control for a multifilament. Also excellent in a hybrid set-up to increase spin.
String Project Overgrip Professional Dry 0.50 mm
Maximum grip and sensitivity, with a dry, secure hold even in the toughest conditions.
String Project anti-vibration item
An essential accessory for reducing harmful vibrations and improving shot comfort.