Srutueo This is a modified seat, it has a single hook in the middle up front, not a hook on each side Size: 505 x 175mm / 19.7 x 6.9inch colour:Black Material: Plastic+PU+foam Package Contents: 1 x Replacement Seat Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.