Bartender Gear Pour Spouts Measured Bottle Pourer - Auto-Measuring 1 oz (30 mL) - (6 Pack) One ounce Red Measured Pourer Shots, as one shot is poured the next 1 oz shot fills the chamber ready to be poured Measures Quick and Reliable ball bearing system. Keep pourer controls in line for the bottom line of your business, with consistent cocktail mixing Cleans safety and easily No mess, no spill