AGRelux Agura Cushion Chair Cushion with Non-Slip Processing Breathable, Prevents Stuffiness, 3D Spring Structure Black Agri Relax 3R SYSTEMS Approximately 435mm x Approximately 300mm x Approximately 75mm Purchased for 2980 yen Black mesh fabric that can also be used for office chairs The back has non-slip bumps Firm texture, feels like it slightly depresses when you sit on it Used only once in the office due to lower back pain I bought it because I wanted to raise the height of my office chair and because the firmer cushion helps with pelvic alignment, but it didn't fit the depth of my chair, so I'm selling it. This year, I made my shocking lower back pain debut. I'm listing several items as a result of trial and error... It's about compatibility, so please rest assured that the items themselves are not bad. #FirmCushion #Cushion #OfficeChair #LowerBackPain #MeshCushion #HeightAdjustingCushion #PriceReduction