Salsbury Industries 33390SLV Electronic Lock Factory Installed on Designer Wood Locker Door, Silver Dimension: 1.25 in. W x 5.25 in. H x 2.5 in. D Allow for single-use or multi-use applications Factory installed in extra wide designer locker when ordered at the same time 3-code levels available: master code, sub-mater code and user code Include 2 AAA batteries