[ Upgrade Safety ] : This recodeable combination locking bolt adds 4 digit pin code to the general door slide latch lock, which give high quality security for indoor and outdoor applications. [ Keyless Security ] : The Door Latch Lock is a combination of 4 digitally adjustable metal wheel locks,which can provides 10000 combination codes, there is no need to hassle with keys. [ Hard Durable ] : This deadlock is constructed of solid metal and installs in minutes with the one way screws included with the lock. The body of this locking device also has a rust resistant coating and will last for years to come [ Easy to Install ] : The Combi-Bolt features a slide barrel bolt and gives the user versatile options when mounting the sliding fence hardware so you can choose from a recessed or flush mounting [ Widely of Applications ] : It is the perfect locking solution for gates, sheds, barns, fences, iron gates, wooden gates, as well as childproofing cupboards in your home and workshop.