The LiftMaster 041ASWG-0119 release keys set includes two replacement keys for use with LiftMaster LA400 and LiftMaster LA500 swing gate operators. This set of two metal keys with metal key ring will operate the gate operators release leaver to allow you to operate the gate manually. This 041ASWG-0119 LiftMaster release keys set is also known as part number 41ASWG-0119. Product Highlights: 041ASWG-0119 Also known as part # 41ASWG-0119, 2 metal keys + metal key ring, Compatible with LiftMaster LA400, LA500 series gate operators