Portable Key Lock Comnination:Portable Key Lock Combination Box can be used for Home, Vacation Rentals, Businesses, Real Estate, Office, Gym, Hospitals, Schools and Warehouse. Widely Application:Removable Shackle is easy to install over a doorknob, fence, locker, gate, garage or anywhere you need to install a lock box, and it can be placed anywhere. Easily transportable from one location to another. A Removable Shackle makes it easy to place on doorknobs, a wide fence or anything that is oversized. Cover should be up to keep it the combination from getting jammed or stuck. Durable Metal Materil:This Portable Waterproof Key Lock Box is durable as it is made of the best quality of metal and will deter thefts in public and private settings. Our lock is made of a zinc alloy which makes it stable and Durable, The Portable Key Lock Box is easy to operate, yet the hardest to break into. Plastic Protective :Protective Outside Layer is made from a unique and hard plastic which is high quality plastics in the World that is unbreakable. This makes it the perfect material to deter thefts in public and private settings and to protect your keys and cards from being damaged by drill, hammer, saw and flame retardant. Also, the outside layer is scratch resistant, so it wont scratch your door or anything you hang it on. Convenient to Use:Setted your own special password combination, for keyless convenience & increased security