EFFECTIVE TRAINING METHOD: This test kit is a liquor calibration system that is the most effective way to train and test bartenders to pour by count. Avoid over pouring with this tool. TUBE SPECIFICATIONS: This Exacto Pour Bar Test Kit includes 3 test tubes. Two tubes include measurements for 1/4 - 3/4 and 1-1/4 - 1-3/4. The third tube includes measurements for 1/2 - 1 and 1-1/2 to 2. ITEMS INCLUDED: Durable plastic case is included, along with 3-tubes. Includes O-rings and funnel. PROUDLY MADE IN THE USA