Shaker Snake's 6" Mixing Coils are specifically designed to fit a 28 oz "Blender Bottle" or any other shaker cup of similar size and shape. And for those who have multiple shaker cups, we're proud to present our Shaker Snake 3-Pack. Plus, order the 3-Pack and save yourself a dollar. Remember, however, these mixing coils will NOT fit into a 20 oz shaker cup, so please be sure you have 28 oz shaker cups before ordering our 6" mixing coils. This item includes three 6" mixing coils each measuring 2.5" at the base, 3.25" inches across the top, and 6" long.