Thanks to a slightly softer sponge underlay, SPEEDY SPIN FX PREMIUM confers more elasticity and rotation. If your orientation is a rich topspin offensive game, you should be looking forward to playing with this rubber because it will enable you to realise a very curved ball trajectory, with lots of dynamics and high control. SPEEDY SPIN FX PREMIUM is a hardwearing quality rubber. Even in modern times, this rubber remains a classical rubber, bringing lots of joy and variety into the game.