AliMed® AliLite™ Supine Positioning Set provides head-to-heel pressure redistribution and nerve protection for the most common high-risk areas while in supine. Convenient and versatile, this multipurpose set is ideal for many common procedures, and includes a Head Donut, Surface Overlay, Dome Positioner, and Heel Pads. Five-piece set.A. (1) Head Donut, Adult B. (1) Surface Overlay: 20"W x 45"L C. (1) Dome Positioner: 6"W x 13-3/4"L x 3"H D. (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.