waterproof casing with screw top protects your key from rust can be used for keys that are up to 8 cm long and 35 cm wide thieves know to look under doormats behind the bin or in the flower pot this lawn sprinkler however looks real and can be used as a waterproof key storage place this should fool any thief just put it into the flower bed and if the door shuts behind you or you have left your key somewhere you wont be locked out any longer this prevents you from having to cal