1. 【Durable Material】: The marker pens for the Ball Liner Marking Tool are made of high quality plastic, are odorless and non-toxic, are safe to use and can be used for a long time 2. 【Pliers design】: Convenient to use with the pliers design, just pick up the ball and draw straight and clean lines on the golf ball to fix the golf ball 3. 【Easy to Align】: Simply mark the front and back of this golf ball marking tool to make your putter face perpendicular to the target line and identify your ball 4. 【Easier to draw lines】: The tong shape makes it easy to pick up the ball, easy to draw straight and clean lines on the golf ball Easy way to draw lines to check your alignment when swinging or putting. The markers will help you find a better angle and help you achieve your goals 5. 【Convenient to Use】: This allows you to lay a line on a ball most of the time without repositioning the template. Both the front and back can have markings so you can make your own mark to identify your golf ball