Designed for use by therapists when working with children at floor level. Features locking wheels so that it can be used either as a fixed or mobile stool. Height adjustment is at 25mm (1") intervals. Locking by Allen key provides a rigid and tamper proof adjustment. Colours may vary.Seat size: 450 x 370mm (173/4 x 14.5"). Adjustable height: 340-460mm (13.5-18").