Thank you for viewing! Balance Support Cushion "Pinto" naturally guides you to a comfortable sitting posture. Brown Body size: Width 430 x Height 380 x Depth 430 (mm), Weight: Approx. 900g Package size: Width 387 x Height 431 x Depth 122 (mm), Weight: Approx. 1300g Materials: Cushion material: Polyurethane HR foam, Cover material: 100% polyester Made in Japan A cushion created by an occupational therapist based on rehabilitation techniques to guide you to the correct sitting posture! Introducing a cushion created by an occupational therapist based on rehabilitation techniques. It is made using the "S-Rhythm technology," a three-dimensional structure system created by molding the human body. Focusing on the body's function to maintain balance, it provides information as a guide during movement, naturally leading to the correct sitting posture. S-Rhythm technology is PAS's unique technology that molds the body's weight, muscle tension, movement, and balance under gravity. The purpose is to create a neutral state in the body through efficient muscle activity and functional joint movement. The shape is designed to keep heavy bones in a functional position, making it easy to understand "where to sit, which direction to move, where to return, and where to rest." By sitting on this product, it supports a functional posture and a posture that puts less strain on the body while sitting. The premium comfort is also a highlight, derived from the experience and achievements of Hisako Nomura, who has created custom-made seating support devices and solved the postural concerns of over 10,000 people. I only used the cover for a few days. I have disposed of the box. It is a beautiful item with no stains or damage, but please refrain from purchasing if you are sensitive to minor imperfections due to personal storage.