Elevating legrest models feature a notched, stainless steel ratchet bar to lock the legrests securely in place Threaded seat screw inserts reduce stripping from upholstery changes Padded and upholstered armrests and calf pads are standard Durable, tig-welded frame with black powder coat finish Comfortable nylon upholstery Dual axle hemi-height adjustable Available with desk length removable or full length removable arm styles Available with detachable footrest or detachable elevating legrest Seat sizes come in 16 x 16 (41 cm x 41 cm) and 18 x 16 (46 cm x 41 cm) 300-lb (136 kg) weight capacity Optional accessories: O2 Holder (item MDS85181U), Anti-Fold Device (item MDS85196), IV Pole (MDS85183), Overhead Anti-Theft Device (item MDS85197A), O2/IV Combo (item MDS85190), Anti-Tip Device (item MDS85189), Tinnerman Legrest Locks (item WCA806991)