Mobile Base only for Sm Med or Lge 3 piece Floor Sitter Screens Privacy (Mfgr#15770) * Multi layered high density Autoclavable Up to 325 (Mfgr#15770) * Multi layered high density foam provides optimal pressure redistribution * The ultra soft heel section is uniquely designed to provide extremely low skin interface pressure * The mattress cover is a 2 way stretch water resistant vapor permeable nylon * The cover provides a low moisture transmission rate (MVT) which keeps the patient cool and dry * Meets fire code 1633 * 7 Year Limited Warranty * Top layer of foam is high resilient and die cut which provides comfort and proper pressure redistribution 11 kg) load capacity under normal use * 5 year limited warranty Flat mobile base only * Seat wedge and base are secured to each other with velcro * Individual may be moved without repositioning *