High Quality: Ball lined marker tool markers are all made of high quality plastic material, odorless, non-toxic, safe to use and can be used for a long time. Clamp Design: It clips onto the ball for a snug fit, ensuring your ball doesnt fall out and youll get a smooth, clear line. Easy Alignment: Simply mark on the front and back of this golf marker tool to help align your putting face perpendicular to the target line and identify your ball. Function: Helps to mark the ball before the game starts. This is an easy way to draw a line to check your swing or putt alignment. Markers also help you find the ball easily. Wide application: This ball marker allows you to draw a triple track line on any golf ball you want, regardless of brand or color. Product Package included: 1 Golf ball line liner 2 Marker pens Specifications: Name: Golf Ball Line Liner Material: ABS Weight: 5g How do I create the perfect lines for my golf balls 1.Clip the ball marker onto your ball. 2.Run a Red Ultra Fine Sharpie around the perimeter of the centre stencil. 3.Colour in the middle for a solid red line. 4.Run a Blue Ultra Fine Sharpie around the perimeter of the outer stencils. 5.Colour in the middle for a solid blue line. 6.Wait a few seconds for the sharpie to dry, and remove the ball marker. 7.Hole daunting puts, whilst saving money Features: 1.This ball marker allows you to draw Triple Track lines on any golf ball you want, regardless of brand or colour. 2.You can easily create lines which match up perfectly with the Odyssey Triple Track putter, exactly like the real thing. 3.Made from strong and sturdy SLA plastic. 4.It clips onto the ball and has a nice, snug fit, ensuring that your ball wont fall out and that youll get a smooth, crisp line.