Make your stroke as smooth as Butter! The Butter Putter has 4 important features: Classic putter head (right and left handed models) Flexible shaft with the weight and diameter of a steel shaft Flex Sleeve that slides on the shaft to make it more or less flexible Michael Breed LifeLine putter grip Learn to keep the putter head moving with smooth motion. Refine your speed control to Tour levels. Make your time on the putting green more fun, you will be amazed at the results!