Wheelchair Inflatable Cushion with Pump: The air layer in the cushion can effectively eliminate the pressure of soft tissue. The weight is evenly distributed without applying pressure to the lower back. Reduce the pressure on the hips and distribute the pressure on the mat Comfortable material: Made of medical-grade PVC nylon composite fabric, the seat cushion is made of medical-grade PVC nylon waterproof composite fabric and the bottom single-layer Oxford cloth fabric. The materials are exquisite, the workmanship is excellent, and the crimping is firm Variable Pressure Pump: Variable pumps produce constant airflow and provide multiple levels of pressure for a customizable experience. The variable voltage pump is super quiet and allows you to fall asleep peacefully. Air pumps and air ducts are designed to shut down air Closed air design: When the buckle goes out, the buckle's air cushion will close, which can hold air for 4-6 hours, allowing you to travel easily Wide range of uses: It is anti-decubitus, breathable, and can widely meet the needs of sedentary people. It is perfect for preventing bedsores in patients who are bedridden for a long time. The pressure relief cushion is also suitable for wheelchairs, cars, offices, schools, etc