The Eyeline Sweet Roll Putting Rail System well is the perfect combination of the correct speed and chosen line.  This visual tool demonstrates the perfect combination of speed and line. Practice breaking putts with 100% confidence of the line.  You will learn how slight differences in speed have a big impact on green reading. Know the perfect speed when you pull out your putter.  The quickest way to the ideal line Lets Get Started: Find the dot that creates ideal speed. Adjust the aim of the rail until balls fill the cup.Add the Spot On Laser Target and you are ready for the most precise practice ever – putter gate, ball gate, and intermediate targets all come from the Sweet Roll.There is even a dot to match a Stimpmeter.Remove the kickstand and hit putts on the rail to any distance you want – 30, 60, and beyond.