Four twin-wheel casters (two locking) allow the unit to roll under desk or credenza when not in use. Features an adjustable divider system to accommodate both legal and letter size hanging folders at the same time. Multipurpose bottom shelf provides additional storage. Durable steel construction. 24w x 14d x 20-1/2h. Shpg. wt. 14 lbs. Easy assembly requires no tools.