(No power / batteries required). 60 mm heavy duty tubular latch. Large indented buttons for ease of use. Suits doors from 35-54 mm thick. Tested to more than 100,000 cycles.More than 8000 codes to choose from. The item "AIRBNB Keyless Door Lock 5001 Satin Chrome Lockset- Push ButtoN-Free Post" is in sale since Sunday, May 07, 2017. This item is in the category "Home & Garden\Building Materials & DIY\Doors & Door Hardware\Door Locks & Lock Mechanisms". The seller is "key-king" and is located in Melbourne, Victoria.. This item can be shipped worldwide.