1. ABS material, environmental protection. 2. Two AA batteries, ultra-low power consumption, longer use. 3. Multiple management technology, support singledual key unlocking, one key to open multiple locks, and multiple keys to open one lock. 4. Suitable for double-opening cabinet door installation. 5. It is easy to install without opening holes. Product parameters: 1. Suitable for maximum door thickness: 45mm. 2. Material: ABS environmental protection plastic material. 3. Battery: 2 AA batteries (sold separately). 4. Life time: one year. 5. Card reading distance: less than 2.5cm. 6. Lock body: 86x63x28mm. 7. Lock: 36x21x16. 8. Product net weight: about 125g. 9. Unlocking time: within 1 second after successfully swiping the card. 10. Working voltage: 6V. Note: 1. It will not lock if the battery is insufficient. 2. The keys are all blank keys. After receiving the product, you can match it according to the manual. Packing list: Lock body x 1 Lock x 1 Keychain x 1 Card key x 1 Marking sticker x 1 Screw pack x 1