Elevating legrest models feature a notched, stainless steel ratchet bar to lock the legrests securely in place. Threaded seat screw inserts minimize stripping from upholstery changes. Padded and upholstered armrests and calf pads are standard. Carbon steel frame with rust- and chip-resistant chrome plating. Easy-to-clean navy vinyl upholstery. Chart pocket on back. Arm style: desk length removable. Leg style: detachable footrest. Seat size: 20" x 18" (51 cm x 46 xm). 350-lb. (159 kg) weight capacity. Optional accessories: Anti-Fold Device (item MDS85196), Overhead Anti-Theft Device for 18" - 22" Models (item MDS85197A), I.V. Pole (item MDS85183), 02 Holder (item MDS85181U), O2/I.V. Combo (item MDS85190), Anti-Tip Device (item MDS85189), 22" Pushbar (item MDS85192), Tinnerman Legrest Lock (item WCA806991).