Friendship 729 FX (Orange Sponge) Table Tennis Rubber is a medium-hard, controllable, spinny rubber. Its spin generation is great if you brush the ball correctly and your technique is sound. As the rubber is sticky instead of grippy, it’s very easy to ignore incoming spin and put your own on the ball. However, it’s not a quick rubber and it also doesn’t generate “easy spin”. This rubber forces you to perfect your techniques, play actively and think about tactics to use it effectively. This is why I think this rubber is perfect for learning the sport and developing a spin-oriented style, whether it might be defensive, allround, or offensive.