Aiming key, putter and method for enhancing the accuracy of aiming

An aiming key for enhancing the accuracy of aiming while putting a golf ball comprising a body, the body comprising:

• a first end and an arcuate second end, the first end being removably attachable to a putter;
• a circular target proximate the arcuate second end;
• a first side and a second side, the first and second sides being parallel, the first side having a first side end and a second side end, the second side having a first side end and a second side end, wherein the first end extends from the first side first end to the second side first end and the arcuate second end extends from the first side second end to the second side second end;
• an interior opening including a first interior end and a second interior end, the interior opening extending through the body and being between the first and second sides;
• and
• an aiming member aimed at a center of the target, the aiming member including a first aiming member side, a second aiming member side, an aiming member end and an elongated cut-out intermediate the first and second aiming member sides, the aiming member end is separated from the target by a distance, wherein the cut-out and the aiming member sides are parallel to the first and second sides, the cut-out extends through the body from between the first end and the first interior end and beyond the first interior end into the interior opening.