Feature:1. 1. The 3D inflatable bag design of the seat cushion can provide 30% stress relief for your hips.2. 2. Sit for a long time without feeling tired. It is an ideal cushion for studying in the office, school or home, driving or playing games at home.3. 3. The shallow groove design makes the air cushion ventilate. Then, it can keep your hips at a normal 26°C-28°C, which is different from the usual cushions, the temperature will rise when sitting for a long time.4. The 4.3D three-dimensional inflatable bag design can disperse the pressure between the bottom and the object. The internal air will flow according to your sitting posture, and then the cushion will better fit your bottom.5. 5. Non-inflatable cushion. It is very soft and you will feel comfortable.Specification:Material: Polyurethane Elastic Fiber (Spandex)Size: 45*45*2cmPackage List:1*Cushion