Fully progressive steel ball bearing suspension allows drawers to operate quietly and effortlessly. Drawer interlock system protects against tipping. A single lock controls all drawers and doors, providing easy, yet efficient, security. Dual lock bars provide added security. Optional retracting doors are spring assisted for ease of use. Drawers accommodate both letter and legal size documents. Contemporary, full-width recessed pull handle comes standard on all units. Combination Unit is 4 solid-front drawers and 1 retractable drawer. Meets ANSI BIFMA test standards. Options: Posting shelf, counterweights, cross rods, dividers, key alike, laminate top.