Nishikawa Keeps Pelvic Support Cushion [Product Condition] Almost no signs of use. The box has minor scratches, but I personally think it's in good condition(^^) Material of the contents: Polyurethane foam Shape: Square Size: Width 44 x Length 41 x Height 18cm [Composition of outer fabric] Surface/Sides: 100% polyester (antibacterial treatment) Back: 65% polyester, 35% polyurethane (non-slip treatment) [Filling] Urethane foam Country of origin: China The "Keeps" support cushion maintains a comfortable posture just by placing it on your usual chair. It gently supports your buttocks and helps maintain a comfortable posture even when sitting for long periods. For those who find their chairs at home or in the office too hard to concentrate on, or who experience back pain while sitting. It naturally supports your sitting posture. It uses a rich urethane material with high elasticity and excellent pressure distribution, so it's not too hard or too soft, and the right amount of firmness envelops your buttocks, allowing you to feel comfortable even when sitting for long periods. It can be easily used just by placing it on your usual chair for long hours of desk work or hobbies. The correct posture is when the ears, shoulders, and hip joints are in a straight line. The ischial pocket is designed to position the pelvis in an ideal posture. By sitting with your ischial bones fitting into the ischial pocket, it prevents your posture from collapsing forward, and supports it at the sacral point, leading to an ideal sitting posture, so you can easily maintain the correct posture just by sitting. When sitting without a cushion, about 85% of the pressure is concentrated on the ischial bones. When using the Keeps cushion, the pressure on the ischial bones is reduced to about 30%. [From Tama's Shop] The color may differ depending on the camera and lighting. Please understand that this product has been handled by a person once, and that it is a personal inspection and personal storage. The product contents are only those shown in the images. Please check the product condition in the photos before purchasing. Please contact us with any questions before purchasing. #Click here for all Tama's Shop products ↑Click here to see other products. Thank you for viewing!