Features adjustable divider system to accommodate both letter and legal size hanging folders at the same time. Multi-purpose bottom shelf provides additional storage. Roll under desk when not in use. Easy, tool-free assembly. Four twin wheel casters (two locking). Organize letter or legal size hanging file folders for deskside access. Rolls under desk or credenza when not in use. Wire and metal tube construction provides strength and durability. Handy bottom shelf for additional storage. Product is 100% recyclable.