Made of memory foam whose thickness is about 3 inches, specially designed for rowing machine. Super non-slip surface, equipped with straps, which can prevent the seat cushion from slipping off the seat while rowing. Washable cushion cover which is zippered, easy and convenient to replace and clean. The cushion allows for longer rowing sessions to maximize fitness and speed, very practical. Simply put the cushion on the seat and buckle the straps, it is easy to install. Specification: Color: Black Material: Memory Foam Size Chart: 32x22x7CM/12.60x8.66x2.76inch Package Includes: 1 Piece Rowing Machine Seat Cushion Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!