Steel ball bearing suspension; full extension on file drawer, 90% extension on box drawers. High-sided file drawer allows front-to-back letter size filing & includes follower block & crossrail. Counterweight inhibits tipping when opening more than one drawer. Fits under 29-1/2" high workstations. Fixed front casters & swivel back casters for easy mobility. “One Key” core removable lock makes re-keying quick & easy. Box / Box / File with arch pulls. Color: Black; Color Family: Black; Overall Width: 15"; Overall Depth: 28 7/8".