When your bottles are upright, the closed fliptop prevents anything from entering the bottle. When the bottle is tilted into a pouring position, the hinged fliptop opens smoothly allowing liquor to pass through the spout.
3 ball pourer
Fits standard bottles
Protects against fruit flies and contaminants
Reduces overpouring and spills
Speeds up drink pouring
Drinks taste more consistent
Bagged.