Feature: 1. WASHABLE: The black cover of gel memory foam cushion is detachable and washable, make sure you are clean and hygienic when you are using it. 2. TRIANGULAR INCLINED PLANE DESIGN: Reduce the waist pressure when lying in bed, and the T shaped opening design can separate the ischium from the coccyx at the same time. 3. REDUCE STRESS OF CROTCH: Design of crotch decompression ventilation, reduce crotch pressure when using, and promote air circulation when using. 4. APPLICATION: Suitable for bedridden, wheelchair, office chair can be used, perfect for bedsore prevention of people who have been bedridden for a long time and isolation of the parts where bedsores have already occurred. 5. GEL: Made of slow rebound memory cotton, gel and mesh cloth, it is soft, comfortable, non deformable, bouncy and comfortable to sit on it and sedentary. How to Use: When using, please lift the person completely away from the cushion and then pull it out, otherwise it will tear the cushion easily. Specification: Item Type: T Shape Opening Foam Cushion Material: Gel, memory cotton, mesh Size: Approx.45 x 38 x 8cm / 17.7 x 15 x 3.1in Package List: 1 x T Shape Opening Foam Cushion Note: Please allow 1?3cm error due to manual measurement. Thank you very much for choosing our products, you won't regret it!