AliMed® AliLite™ Prone Positioning Set includes essential components for pressure redistribution and nerve protection for vulnerable areas during prone procedures. AliLite Prone Headrest offloads pressure and maintains neutral position. Includes a Prone Headrest, Armboard Pads, Prone Positioner, Knee Support, and Heel Pads. Seven-piece set.A. (1) Prone Headrest, Adult B. (2) Armboard Pads, Contoured, Long: 6"W x 20"L C. (1) Prone Positioner, Full Body: 20-1/2"W x 74"L x 5-1/2"H D. (1) Knee Support, Large: 6"W x 20"L E. (2) Heel Pads, 4"W x 7"L x 3"HAliMed® AliLite™ Gel Positioners are up to 50% lighter than comparable gel-only products, combining all the pressure-relieving properties of gel with a lightweight inner foam core for easier handling. AliLite is impervious to fluids, naturally bacteriostatic, and features a stable, nonskid base. Precountoured to reduce pressure by redistributing weight over a larger surface area. AliLite gel is made of dry viscoelastic polymers and includes a 24-month warranty against manufacturing defects.