[PURPOSE]Putting training aid tool is created to check your alignment, eye position and shoulder alignment. [IMPROVE YOUR SKILL]Improve greening reading and protect the environment. Great training aid for golf putting, improve posture alignment [FEATURES]:The putting tutor is designed to Identify the putts you strike squarely and start rolling online, putting tutor features a guide line to help aim your putt on the exact chosen line for your putt, the tutor's eye position allow you to verify consistent eye position at address, consistent eye position is necessary for great putting fundamentals, the tutor's flat back edge helps you square your putter face at address. [EASY TO USE]: Suitable for golf beginners or advanced golfers. GOLF BALL IS NOT INCLUDED. [GREAT FOR ALL SKILL LEVELS]: Learn how much putts break simply by adjusting the aim of the putting tutor higher or lower until well struck putts Go in. Great for all skill levels Derivative Series: Golf Putting Trainer Type: Golf Putting Trainer size:221x130x65mm Material:Composite plastic colour:Black Package Contents: 1 x Golf Putting Trainer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.