Thank you for viewing. Gel Cushion Multi-Seat With Cover ＜Size＞ Seat and Backrest: Approximately 42cm x 36cm x 3cm each This seat size uses two gel cushions and is a folding type. Attach the band on the back to the backrest of the chair, and it can be used as a cushion with a backrest. It also has a handle for carrying when folded in half. The cover's outer fabric is navy blue, and the lining is black. Purchased two years ago, and used at the workplace for about a year and a half. Therefore, the part of the gel cushion that was in contact with the buttocks is slightly peeled, and there are some flakes, but I think it is not a problem for use. Also, the band on the back is slightly stretched. The cover has been washed. For those who understand these points, thank you. #GelCushion #ZeroGravityCushion #ZeroCushion #MultiSeat #Backrest #Buttocks #NotPainful #Cushion