This is a ROHO cushion, a middle-type cushion with a cell size of 8x8. I purchased it used, but I haven't used it much. I have confirmed that it works. There are no problems. The cover has been washed. The main body has been disinfected with alcohol. This cushion prioritizes pressure redistribution and is highly effective in preventing bedsores. It is a wheelchair cushion, but it can also be used on chairs, car seats, etc., in addition to wheelchairs. Also, it is suitable for preventing lower back pain as it reduces the burden on the lower back. Contents: ROHO cushion body Dedicated cover Dedicated air pump Instruction manual Puncture repair kit (large damage cannot be repaired) No original box