This closure fits containers requiring a 24/410 top.Dip tube 8".This mini trigger spray comes with a lock on it to prevent unwanted leaking or spraying. Push the button on the neck of the bottle to toggle between lock and unlock. The bottle has a small graphic on each side showing which side is "lock" and which side is "unlock".This pump will not work with our aluminum bottle.Directions: Push the button on the neck of the bottle to toggle between lock and unlock.