Counterweight included, where applicable, to meet ANSI / BIFMA stability requirements. Lock secures both sides of drawer & heavy-duty, three-part, telescoping, steel ball bearing suspension offers smooth drawer operation. Mechanical interlock allows only one drawer to be open at a time to inhibit tipping. Four adjustable leveling glides help compensate for uneven flooring. Drawers include side-to-side hang-rails for letter or legal size filing & bright, anodized aluminum recessed drawer pulls. HON “One Key” interchangeable core removable locks. Four Drawers. Drawer Quantity: 4; Drawer Configuration: File; Anti-Tip Mechanism Indicator: Yes; Anti-Tip Mechanism: Counterweight; Mechanical Interlock.