Features: 1. This ball mark allows you to draw a trajectory line on any golf ball you want, regardless of brand or color. 2. You can easily create a line that perfectly matches the putter, just like the real thing. 3. The marker pen of the golf marking tool is made of high-quality plastic, odorless, non-toxic, safe to use, and can be used for a long time. 4. It can be clamped on the sphere with a high degree of fit, ensuring that your sphere will not fall, and the lines are smooth and clear. 5. It is helpful to mark the ball before the start of the game. This is a simple way to draw lines around the alignment of the swing or putt. Markers can also help hit the ball easily. Specification: Name: Golf line liner Weight: 5g Material: ABS Color: Red, blue, black Packing List: 1 * Golf line liner 2 * Marker pen Note: 1.Due to the different monitor and light effects, the actual color of the item might be slightly different from the color showed in the pictures. 2.The color of the product is subject to the color received, please allow 2-4cm measuring deviation due to manual measurement, thank you for your understanding! The golf ball line maker tool with slotted design which allows for drawing straight and neat lines on your golf balls with ease, useful tool to help you find a better angle DURABLE MATERIAL，The ball liner marking tool made of quality plastic material, odorless and safe, durable for your use and can serve for a long time. EASY TO ALIGN,You can mark on the front and back sides of this golf ball line liner ball marking tool, which is convenient for you to align your putter face perpendicular to the target line and identity your ball.