This Mayo-Type Instrument Table features a stainless steel tray on chrome plated steel base with ball-bearing casters for increased maneuverability. Stay-put knob keeps tray at selected height. • Chrome plated steel tubing • Height adjusts from 31" to 50" (78.7 cm to 127 cm) • Tray size: 12 1/2" x 19" (31.8 cm x 48.3 cm)