Provides a seating surface, turning hard surfaces into a comfortable seat. Reduces the strain on joints and muscles that are used every day to sit and stand, reducing the risk of injury. Great for those with limited mobility, the comfortable rotating cushion is backed with a textured, non-slip material to reduce unwanted movement. Features - Material: Fabric, EVA. - Size: About 43.00X38.00X1.00cm/16.90X14.93X0.39inch. - The bottom of the cushion features a non-slip surface that makes the swivel safely and firmly. - It help reduce strain on the back, hips and knees. - Swivels 360 degrees to help relieve back, knee or hip strain caused by twisting when getting in and out of chairs or car. - This cushion can be used in most types of vehicle seat or at home when sitting down at a table. Being light weight it can be moved easily between any seating setting. - Soft, low profile, and comfortable portable seat cushion. Rotates 360 degrees. Makes getting on or off a seat or chair easy and comfortable.