SteelMaster 225106001 Alarm Alert Steel Cash Drawer w/Key & Push-Button Release Lock, Black Touch-button steel cash drawer with alarm Automatically springs open when release button is pushed Tough, high-impact plastic removable cash tray with flat key or disc tumbler security lock options Mounting brackets included Measures 17-3/4-by-15-3/4-by-3-3/4 Inches (WxDxH)