This is an actual sprinkler system head which has been converted into a key hider. Blends so well into your yard or garden that no one would ever think that you had a spare key hidden inside. You will never have to worry about being locked out again and only you and your family members will know the secret location where the key is hidden. Please note that this item is not a functional sprinkler head. Although this key hider is small and compact it is great for storing many keys. The sprinkler head measures 4 inches x 2 inches x 2 inches. Covered under a 90 day warranty. The secret compartment measures 3 inches x 1 1/2 inches x 1 1/2 inches.