Forward tilt of the seat cushion relieves stress from the lower spine and pelvic area. Adjust the shape and thickness of the cushion to customize comfort. When used as a back cushion, provides proper seat depth dimension. Unique patented system of interchangeable foam inserts provide personalized comfort and support. Helps reduce back strain and fatigue caused by improper seating posture. Hook and loop strips hold cushion in place on fabric seating and an adjustable strap is provided for smooth surfaces. Machine washable and flame retardant.