Duro-Med Deluxe Swivel Seat Cushion has 360 degree swivel action that effortlessly enables a person to twist and turn in any direction helping to prevent hip and back strain, It is a 1, 75in soft foam cushion padding for exceptional comfort, The ball bearing roller-mechanism allows seats to turn without binding, A durable flexible base with slip-resistant bottom contours to seat and stays in place, The cover is removable and machine washable, The weight capacity is 300 pounds, SKU: DMI085