Length and width of the furniture lock: 40 x 40 mm, lock cylinder length: 22 mm, lock cylinder diameter: 16mm (please refer to the picture if the description is not clear). High quality materials: made of zinc alloy, surface electroplated, sturdy and durable, small in size, safe to use and can be used for a long time. Furniture, drawers, mailboxes, cabinets, office cabinets, kitchen cabinets, display cabinets, iron cabinets, cabinets are also perfect replacement locks. Installation method: The cabinet lock has self-tapping screws. It is necessary to check whether the barrel length is correct (22 mm). For installation, please refer to the installation diagram. Package Contents: 2 cabinet locks, 4 keys (2 keys for each cabinet lock). Note: Please check the size before you buy, like the picture, and choose the lock that suits you, thank you.