Vertiflex Smartworx File Cart, One-Shelf, 29 1/8w x 14d x 28 3/8h, Matte GrayFor letter size hanging file folders. Sliding file rails adjust to hold legal size file folders. Bottom storage shelf removes easily to add Vertiflex Smartworx Companion File (sold separately). Durable steel and wire construction. Four twin-wheel casters, two locking. Locking top panels slide out of the way for full access to files and can be used as auxiliary work surfaces. Includes two keys. Color: Matte Gray; Caster/Glide/Wheel: Four Twin-Wheel Casters (2 Locking); Material(s): Steel; Wire; Overall Width: 29 1/8".