Curl P-4 is the latest generation of TSP Curl long pips rubber. Curl P-4 uses a uniquely specialized soft sponge that allows an amazing amount of control, while providing the ability to hit strong attack shots. This very special rubber was developed by the highly respected Japanese chopping player, Mr. Koji Matsushita. Curl P-4 offers an excellent combination of control for chopping shots, while maintaining strong offensive capability.