Size: Diameter 40 x Height 7.5cm (Inner diameter is 15.5cm) Materials: Vinyl leather, urethane Achieves the same specifications as those used in hospitals! The Velcro prevents the U-shape from spreading, preventing the affected area from touching the seat. Easy-to-clean PVC leather is used. The best design, carefully considered for pain To avoid pain caused by sinking in when sitting and hitting the seat, we have deliberately designed it to be thick. This thickness is the same specification as those used in hospitals. Boasting a thickness of 7.5cm! The thick cushion is a firm cushion that prevents sinking. It firmly supports the weight and prevents the affected area from touching the seat. Cushions less than 6cm are not recommended in hospitals! Uses body-friendly materials Uses safe PVC material that does not contain any harmful substances such as lead and cadmium. You can use it with peace of mind during the delicate postpartum period or after surgery. Easy to clean It is resistant to water and alcohol, so you can wipe it with a cloth containing alcohol, and it is also possible to take measures against antibacterial and stain prevention. Also for virus protection. Not just for moms! Recommended for men too! Also useful for long hours of desk work. Prevents your buttocks from hurting. Recommended for those with buttock problems Useful when you don't want to put pressure on the affected area, such as after hemorrhoid surgery! Many men also use it! Durable design with a focus on strength It has sufficient thickness, careful sewing, and excellent strength. Also, the Velcro parts that tend to come off are reinforced!