For letter size hanging file folders. Sliding file rails adjust to hold legal size file folders. Bottom storage shelf removes easily to add Smartworx Companion File (VRT-VF52006, 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. Cart Type: Mobile File; Global Product Type: Carts-Mobile File; Stand Type: N/A; Cart Capacity: N/A.