Features: Ergonomic, streamlined design, very comfortable. Slim shape: has been designed ergonomically in order to adapt to the body and distribute the pressure evenly, Reduces pressure on the prostate. The seats cushion is ergonomically designed, hollow and ventilated, and the wide tail ensures comfort and does not affect the force. The hollow one-piece molding is adopted to enhance the beautys of the seats cushion without peeling or peeling. Provides fine shock absorption support, more comfortable, flexible. Adopts PVC surface, can protect the filling inside at the same time, waterproof and seal.