12 Red Pour Spouts Black Collar Measured Bottle Pourers - Auto Measuring 1 oz Shot Chamber Pourer Pour Spout for Liquor Wine - Bartender Gear 12 Red Pour Spout Black Collar - 1 oz Shot Measuring Pourer Spouts Keep money in your company help control pour costs and inventory with precision pouring! Durable, easy to clean & long lasting Standard bottle opening size 20mm in diameter Fast to medium flow speed for professional use. Controlled pouring liquor & wine!