The Spill-Stop 285-50 is by far the most professionally requested Speed Pourer on the market. The slight taper design offers, control, accuracy, and the most perfectly consistent pour speed every time. The 285-50 is preferred by many Master Mixologists and Flair Bartenders all over the world. Made in the USA. Spout diameter measures 3 centimeters. Measures: 1"1/8 x 1"1/8 x 4"1/2