NEVER GET LOCKED OUT AGAIN - The DELSWIN Key lock box makes that you and your loved ones will never be stranded outside. No longer need to hide your keys outside under a doormat or rock which are extremely unsafe for your home.This Key box is perfect for people living alone, friends, relatives and latchkey kids, home services at given time, emergency entry, Airbnb and house rental..WATERPROOF & RUST-PROOF - The waterproof key lock box is made of zinc alloy and heavy-duty steel, which can protect the box from hammering, sawing or prying. And there is a slide cover on the combination to avoid rain falling on the number combination. Suitable for indoor and outdoor use..HIGH SECURITY - The key lock box is an adjustable combinations lock with 4 dials and it offers 10,000 unique combinations, maximizing security and eliminating the risk of lucky guesses. Highest security for hide a key outside..LARGE SECURE STORAGE - It has a large storage inner space around 3.9 x 2.8 x 1.5in, can easily hold multiple house keys, special small car keys, access card, etc..EASY OPERATION - Open the box with correct combo within 2 seconds, saving time to search keys in your bag. It is very easy to install and set your favorite numbers. Clear instructions are always included.