Used for several months, home cleaned. Has stains, inner cushion is cracked. It cracked when I washed it (T . T) Please be sure to check before purchasing. Original price ¥9980 → currently sold for around ¥3980. I believe it's a no-brand item. Shipping is expensive, but I want to give it to someone who needs it. ^ ^ [Seller's Note] 100 size Cushion, Chair, Memory Foam, Seat Cushion, Gel Cushion, Gel Cushion, Lower Back Pain Relief, Chair Cushion, Lower Back Pain Cushion, Pelvic Correction, Buttocks, Seat Cushion, Floor Chair, Chair, Posture Correction [Form That Beautifies Posture] The 3D streamlined form is expected to improve pelvic distortion. It maintains a posture that naturally tilts forward just by sitting, and your back naturally straightens, leading you to a correct posture without strain. [Synergistic Effect of Gel Material and Memory Foam] By effectively incorporating both the highly weight-dispersing gel material and the memory foam that provides a comfortably soft and pleasant texture, it offers even greater comfort. [U-Shaped Structure] The U-shaped structure avoids contact with sensitive areas like the tailbone, reducing pressure compared to conventional cushions. [Ergonomic Design] This health cushion absorbs and disperses pressure on the buttocks and thighs, making it comfortable even for long periods and reducing buttock pain. It can be used in various places such as offices, cars, wheelchairs, desks, etc. [GelLight 3D Fit] ■ Approximately 45 x 35 x 7 cm Lower Back Pain Cushion, Sciatica Cushion, Chair Cushion, Pelvic Support, Correction Goods, Health, Buttocks, Pain, With Cover, Free Shipping Memory Foam Cushion / For Chairs / Rectangular / Lower Back Pain / Round / For Cars / Seat Cushion / Thick / Backrest / Round / Zori / 45x45 / Gel Cushion / Gel Cushion / Large / Cute / Thick / For Wheelchairs / Footrest / Agura / Large Size / Office