100% Polyester Plush Cover Rest in Harmony - The Kind Bed System offers four pieces that work together in harmony to support your body while sitting upright. Ideal for those confined to bed for long periods of time or for those who enjoy reading, watching TV, or relaxing in bed. Head rest can velcro on to any part of the kind bed system. The velcro straps attach to all pieces using the fabric on the sides allowing you to get the support where you need it. Proper Alignment - Curved back wedge pillow follows natural curvature of spine for proper alignment and full upper body support. Slide the back scoop for adjustable lumbar support. To hold the back rest in place, this item includes 2 removable / adjustable velcro tabs that attach in between the back rest and the back scoop. The exterior fabrics also have a natural friction that allow them to lock in place even without the velcro tabs. Leg Support - Leg wedge provides adjustable support and elevation to help with aching pressure points for hips, legs and feet Premium Memory Foam - Offers supportive medium density foam core with a layer of premium Visco Memory Foam. Covers are crafted from luxuriously soft and breathable microvelvet Manufacturer guarantee - Made in the USA - Made in Atlanta. Back Rest: 28.5L x 24W x 8H. Knee Rest: 18L x 24W x 6H. Head Rest: 9.5L x 24W x 4H. Back Cradle: 13L x 24W x 10H