Mutual lock/Central lock/Self lock system/drawer size :W535*D400*H95(5pcs)-125*(1pc)-195(1pc)/Ball bearing slides/drawers with aluminium handles/5 inch,2 fixed casters, 2 swivel casters with one brake/protective s-steel working pad/logo black 300x66mm on the bottom drawer/packing: each trolley with wheels in carton/artwork outside (on two sides)/Manuals/Aluminum logo.