Interlock Allows Only 1 Drawer to Open at a Time Counterweight Standard RandomKeyed, CoreRemovable Locks with Replacement Cores in Multiple Numbers Available Full Width Pulls and Full Extension Drawers with Steel BallBearing Drawer Slides Standard SidetoSide Filing of Legal, Letter and A4 Files Optional FronttoBack Letter Filing Rails (LF100) 100% FactoryBuilt and Ships Fully Assembled GREENGUARD Indoor Air Quality CertifiedInterlock Allows Only 1 Drawer to Open at a TimeCounterweight StandardRandomKeyed, CoreRemovable Locks with Replacement Cores in Multiple Numbers AvailableFull Width Pulls and Full Extension Drawers with Steel BallBearing Drawer SlidesStandard SidetoSide Filing of Legal, Letter and A4 FilesOptional FronttoBack Letter Filing Rails (LF100)Available in Black (B), Charcoal (C), Light Grey (G) and Putty (P)