The CLEARTRACK Trainer provides both visual and mechanical guidance with an absolute minimum of visual distraction, thus encouraging the eyes to stay focused on the ball. The Side Rails establish the channel for mechanical guidance. The Locator Floor, made of tough polystyrene with green nylon flocking, provides a smooth, realistic putting surface for the ball plus visual guidance….. and the small hole in the Floor locates the ball on the centerline of the channel. Just move the ball to the hole with your putter and, when you see the ball wobble into place, you know it is perfectly centered. THIS IS IMPORTANT! Remember…. if a guide is properly fitted to a putter, and the ball is not on the centerline, it is impossible to contact the ball with the “sweet spot” in the putter face. The visual guidelines are INSIDE the channel, on the ball and stroke paths, to help keep the eyes where they should be. The ring around the ball locating hole provides a reference to make sure your eyes are directly ABOVE THE BALL By detaching the Locator Floor from the Side Rails you can use the Floor alone and have just visual guidance. (Like taking the training wheels off a bicycle!) Subtle or substantial adjustment of channel width is really simple and quick. No need to disassemble to install or remove fixed-dimension inserts. Easy to roll the ball into place no crossbars in the way. THE COMPACT SIZE AND LIGHT WEIGHT OF THE CLEARTRACK MAKE IT EASY TO CARRY, PLACE AND AIM CLEARTRACK is moisture and UV resistant, suitable for both indoor and outdoor use. The Target Cup, a white disc with holes like the bottom of a cup, is included to provide an aiming point for the CLEARTRACK. It is