Brand: IKSTAR Features: Breathable, Washable, Non-slip Color: Black Size: 38cm x 45cm Material: Memory foam Used a few times. I don't feel much wear and tear, but please refrain from purchasing if you are sensitive to such things. Please purchase if you understand that this item is stored at home and will be packaged by an amateur. Original price: 3980 yen <<Product Description>> [Recommended for those who sit for long periods] Sitting for long periods puts a lot of strain on your lower back. This cushion uses high-quality memory foam to distribute the pressure on your buttocks, providing excellent comfort. The three-dimensional structure supports and cradles your buttocks, making it a low-rebound cushion that allows you to sit comfortably for long periods. (※Note: This product only helps with proper posture and does not correct sitting posture.) [Three-dimensional design that cradles and supports the buttocks] The slight indentation and sides naturally fit the buttocks, distributing the pressure on them. [W-shaped design at the front] Both sides absorb the pressure on the buttocks well. It naturally fits and gently cradles the buttocks, providing excellent fit. [Slightly lower design at the rear] By making the coccyx area slightly lower, it gently cares for the coccyx, providing a comfortable sitting experience. [Memory foam material & high-quality product] Using memory polyurethane, it firmly supports the body and distributes the pressure on the buttocks, and will never deform even after sitting for long periods. To provide high-quality products, we conduct European standard inspections (RoHS) and clear safety standards! We deliver excellent products. [Highly breathable mesh fabric & non-slip backing] The cover is made of mesh fabric, which is highly breathable and prevents stuffiness. The cover has a zipper, so you can remove and wash it. The back is non-slip, so you don't have to worry about the cushion falling off chairs, etc. [Target users/locations] Recommended for those who do daily desk work, drive long distances, or want to sit comfortably. It can be used in various applications and locations, such as seat cushions in cars, office chairs, floor chairs, and wheelchairs. [Product Specifications] Size: (approx.) 38 x 45 x 4-11cm Material: Core material: Polyurethane (high-quality memory foam) Cover: Surface/100% polyester (breathable mesh material) Back: PVC material (with non-slip and anti-adhesive particles)