Steel ball bearing suspension; full extension on all drawers. High-sided file drawer allows front-to-back letter size filing and includes follower block and crossrail. Counterweight inhibits tipping when opening more than one drawer. Fits under 29 1/2" high workstations. Fixed front casters and swivel back. Casters for easy mobility. HON® "One Key" core removable lock makes re-keying quick and easy.