Recodable Keyless SecurityWith our 4-wheel recodable combination lock bolt; you can choose your favorite code from 10;000 different combinations. And the code can be called smoothly. Security comes with easesetting and resetting your combination code without any hassle. You don't need to bring a lot of keys and replace locks as it uses a digital password method. Waterproof and durable zinc alloy materialThe bolt code lock is made of zinc alloy and it is durable and weatherproof all year round; the body has a rust-resistant coating so that it is waterproof and the dialsbarrel bolts are chrome plated. The combination slide lock comes complete with pick resistant dials; a 10mm diameter solid steel slide bolt and one way security screws. 2 installation methodsLock sleeve installation: When the door frame and the door are on the same plane; the metal sleeve bolt installation method is adopted. Installation of the side door: when the frameof the door and the door are at a right angle of 90; the installation method of the side door buckle bolt is used; and the door frame must be opened by a hole. Easy to useAs for unlocking; you can dial the password and pull the handle up to open the door lock code. And closing the lock; you can dial the passward; move the handledown; insert the pin into the keyhole; then dial the password; the shed lock is locked. After unlocking; be sure to dial the password in time to avoid accidental locking. Wide ApplicationWith dimensions of 4.76 x 1.81 x 1.57 inches; the combination door code bolt is easy to install and mount in the most compact space. From protecting your sheds; barns; cabinets; doors; iron gates; gateswood; fences or windows. It's the perfect locking choice for both indoor and outdoor environments. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia