For letter-size hanging file folders (sold separately). Sliding file rails adjust to hold legal-size file folders (sold separately) .Bottom storage shelf removes easily to add Vertiflex® Companion File (VRTVF52006 sold separately). Durable steel and wire construction. Four twin-wheel casters, two locking. With Open Top. Color: Matte Gray; Color Family: Gray; Caster/Glide/Wheel: Four Twin-Wheel Casters (2 Locking); Material(s): Steel; Wire.