Check the listing for details. (25)New universal lock cylinder, Multicam Lock With Clips,Riopel, model: 3970-p. Color: stainless steel, Condition: New. Listed at 129.97 USD. Description : Qt: 25 units Multicam Lock With Clips ,Riopel Mailbox Lock w/Clip. Multi Cam Locks. Fits most mailbox doors 3970 MULTI-CAM MAILBOX LOCK- CLIP MOUNT Mail Box Lock with spring clip, 5 pin tumbler Two CO106 keys included. Replaces Riopel (C1/C2/C3), CMC (C4), GHM (C5/C6) and others. Insert mail box lock through hole in door. A grooved body lock uses a "C" clip (included).Slide clip along inside of mail box door into grooves in housing.Make sure clip is pushed into grooves as far as it will go. Choose 1 of 6 cams (included) which most closely resembles cam of mail box lock you are replacing.Place correct cam over rear post in exactly same position as original lock. Place star washer over cam. Thread 1/2" (13 mm) hex nut over washer onto post and tighten.