MAZEL Wheel-Like Golf Practice Ball, Adjustable Weight Putting Trainer with Instant Feedback

【UNIQUE DESIGN】: This wheel-like ball is specially designed for those golfers who putts unstably,it's great to improve the accuracy of your putting on the green and create your confidence!. 【BETTER STROKE】:The putting training aid features the red center line guide you keep it consistent with your putter alignment when stroke each time, ensure you make a better stroke and roll straightly.. 【INSTANT FEEDBACK】: This putting ball is an instant diagnostic tool to check if your putting stroke is perfect. if hit wrong ,the ball will wobble. If hit square, it will roll straightly into the hole. Also it's ideal tool for creating focused practice where every stroke matters.. 【ADJUSTABLE WEIGHT】: 6 PCS adjustable weight rings inside the ball, after several practice you can add or reduce a ring to observe the track of ball and dynamic to judge whether the power of your putting is appropriate,thereby aim to better training result.NOTED: pls add and reduce the weight of both side at the same time to achieve the balance.