Features: 1.Turns any ordinary chairs into swivel ones, reducing the strain, stress, and sprain on you when getting in / out of the seat, wheelchair, car, or any kind of transportation. 2.Provides a soft seating surface, turning hard surfaces into a comfortable seat. 3.Large rotation disc, the ultra-thin and firm design makes it portable and light weight. Handy to carry to office or travel. 4.The non-skid base is soft, comfortable, and stays securely in place while the pad rotates with your body and helps posture correction and spinal alignment. 5.Especially suitable for elderly, pregnant, disabled, people with back, hip, leg, tailbone, muscle pain suffers and difficulties, post-surgery patients, and those who is physically challenged, suffering from backache, waist, and lower body soreness, stiffness, or injuries. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Specification: Material:Cloth EVA Size:40x40x3cm Package List: 1x Car Seat Cushion