With 3.1cm thin width, which is fit for the 99% doors in the market. Passed waterproof testing, which can be installed outside. The lock is aluminum alloy, durable and corrosion resistance. Five kinds unlock ways, fingerprint, password, IC cards, metal keys, Bluetooth App. More mortise for choice, 2885, 3585, 4585, 6085 mortise, please choose the mortise which fit your door.Best choice for slim door, Framed glass door, Aluminum door, KFC door, Broken bridge door, Sliding door. Long handle, round handle, silver color and balck color for choice.