The LockeyUSA SUMO GL2 is a mechanical push button surface mount gate lock. The SUMO GL2 fits gates that are 1-1/4” to 3-1/2” thick and can go up to 5” thick with an extension kit (sold separately). Included in the SUMO GL2 are rubber trim plates that will protect the lock from the elements. From the outside, the lock is opened with an easily customizable 2 to 5-digit user code with a lever. The outside lock body can be set into a passage function that allows the lock to be unlocked until disabled. From the inside, the lock is free passage opened with a lever. Also, the SUMO GL2 comes with a keyed lock out function, where you can lock the lock with a key, and it cannot be opened with the code until unlocked with a key (perfect for pool gates). Adjustable to close up to 2” gaps between the gate and the gate post and is equipped with a guide bolt that makes the lock bully proof. The SUMO GL2 is completely mechanical with zero batteries and zero electrical wiring involved. The SUMO GL2 provides high durability, along with trusted security and LockeyUSA stands by that by offering a Limited Lifetime Mechanical Warranty.