The purpose of the Putting Impact System from Eyeline Golf is to help you learn the important fundamentals of the putting stroke, helping you see, feel and more importantly repeat the process time and time again. Practising without a ball focuses the mind to square the putter face at impact. You know immediately if you\'ve achieved a square face at impact, if it rotates to the right, then the heel of the putter is hitting the plate before the toe, likewise, if it rotates to the left, the toe is hitting first. Very simple but highly effective, the feedback is instant and requires no other means of identification, video, camera etc.