Golf Ball Triple Track 3 Line Marker. Feature 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 Bl Ue 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 Specifications: Model Number: E Derivative Series: Study Stationery Type: Swing Trainer Product:: Golf Shell (without Pen) Material: PP Package Included: 1*Ball Line MakerNo Pen. We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.