1. Easy to draw lines to check the alignment of your swing or putt. 2. Helps you make your own mark to identify your golf ball. 3. These markers can also help you find better angles and achieve your goals. 4. Easy to clip on belts, bags, and pockets. 5. Designed to be used with a pen. Great tool for golf ball markers. (This product does not come with a pen) Product: 360 Rotating Golf Marker Weight: 30g The 360-degree rotation allows you to draw lines at various angles on the golf ball. Note: This product does not come with a pen. Color: Random color (no color selection available) Material: Plastic Size: 7.5 x 6 x 4 cm / 2.95 x 2.36 x 1.57 in Package Contents: 1 x Golf Ball Marker Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement error is +/- 1-3 cm.