Features: Digital Locks: For people who always forget their keys combination locks can solve this problem very conveniently Keyless Cabinet Door Lock: This combination lock is an ideal choice for toolboxes cabinets drawers mailboxes school lockers or any place where a key is not appropriate Scope of Application: This combination lock is suitable for cabinets with thickness between 0 5 to 12mm the mounting hole can be 19 x 15 8mm Material: This combination lock is made of high quality zinc alloy material to ensure it is strong precise secure durable for long term use Easy to Use: This combination lock is very easy to install without screws; the lock can be set with 1-15 digits combination Specifications: Lock Rod Thickness:18(mm) Specifications: 20mm length 6-digit combination lock 30mm length 6-digit combination lock Type: Digital Battery Type: CR2023 (not shipped with batteries) includes: 1 Set of Lock