All Evnroll putters feature Sweet Face Technology, which creates consistent distance on center and off center hits. Evnroll accomplishes this by using precise patented face milling, which imparts progressively more energy transfer on off center hits to roll the ball a consistent difference every time. Four Hosel Options Include: Short Slant (generally for players with a full arcing stroke) = 30 degrees of toe hang. Short Plumber (generally for players with a mid arcing stroke) = 30 degrees of toe hang. Long Plumber (generally for players with a slight arcing stroke) = 10 degrees of toe hang. Long Slant (generally for players with a slight arcing stroke) = 15 degrees of toe hang.