The LockeyUSA 2835 is a residential digital mechanical push button lever door or gate lock (gate boxes sold separately). The 2835 fits doors or gates that are 1-1/8” to 2” thick and can go up to 5” thick with an extension kit (sold separately). Included in the 2835 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. Adjustable for a 2-3/8” or 2-3/4” backset. The 2835 is completely mechanical with zero batteries and zero electrical wiring involved. The 2835 provides high durability, along with trusted security and LockeyUSA stands by that by offering a Lifetime Mechanical Warranty.