Full height adjustment 18-36” & section mobility for patient positioning for maximum results with minimum effort. 34 oz. Heavy-duty vinyl w/bacterial protection, & 1” firm density foam tops. radiused, seamless corners on upholstered components, top sections have welded steel support frames. Pivoting joints house hardened steel shoulder bolts with locking nuts & footswitch control. Power assisted caster system. 110 volts, 60Hz motor. #AM-234-Each #AM-807-Siderail Pair #AM-1028-Set of 4 Locking Castors. Latex Free UNSPSC#42192001