Features： 1、 Material: Inflatable ring cushion seat using rubber and cloth cover fabric, breathable and comfortable, not easy to sweat, not easy to harden in winter. 2、Breathable and Comfortable: Inflatable ring cushion seat is designed with concave and convex ventilation holes to disperse the pressure on the hips and speed up the air circulation in the hip and thigh area. 3、Hip Relaxation: Inflatable ring cushion can provide effective relaxation of the hip, very suitable for long term sitting or suffering from sciatica tailbone people. 4、Relieves Pressure: Air layer in the seat cushion can effectively eliminate soft tissue pressure. Small ring shaped holes ensure even distribution of body weight, without putting pressure on the lumbar region. 5、Widely Applicable: The donut cushion seat can add comfort to any chair, bench, wheelchair or stadium seat. Suitable for office, car, flight, etc. Specification： Item Type: Seat Cushion Material: Rubber, Cloth Cover Features: Elastic cushion, dry and breathable, easy to clean, dispersion decompression Package List： 1 x Seat Cushion