Mixology is an art form, and every artist needs the best tools. Flow with the finesse of a bartending pro with this tool that helps measure out four different-sized shots. Each vessel contains one of the four most commonly used cocktail measurements: 0.5 ounces, 1 ounce, 1.3 ounces, and 2 ounces. Ring design allows the tool to sit loosely around the user's finger. Move quickly and efficiently from one ingredient to the next. The first of its kind, this soon-to-be bartending staple was designed by Giulio Iacchetti and Oscar Quagliarini. Made by fellow B Corp Alessi in Italy.