Ships From Hong Kong. Very cute cartoon tennis vibration dampeners can help to reduce the vibration when you are playing tennis. The effect of it can be improve 20% than the traditional one. It is convenient and fashion, and it is a necessarry eqpuipment of tennis. Smile shape gives you a good mood and energy to go on with your sports. High quality rubber/silicone material. Very cute smile shape. This is the most common equipment for tennis sports. Lightweight and easy to transport. Cheap and fine.