Product description

Material: Zinc-alloy, stainless steel

Surface treatment:Black painting coated lock body andhandle, bright chrome plated cylinder, stainless steel washerand other accessories.

Function:Each lock have its unique ID,you could authorize the key to unlocking by the pre-installed

APP on cell phone to make each single key could unlock onlyone lock or several locks.You can manage the authorization,unlock status and other information by the backgroundsoftware.