1. Achieve PuttsThis golf ball marker ensures accurate readings with its precision bubble standards that confirm you get the most precise green slope values. With each use, you'll enhance your putting skills and achieve exceptional putts, elevating your game to the next level. 2. **MULTIPURPOSE** – Offering a clear display of green slopes, our golf ball marker enables better visualization and analysis. Regular use during practice can boost your golf performance and build confidence on the course. 3. **Practical Design** – Elevate your golf experience with our efficient ball marker. Easily mark your ball while effortlessly identifying and assessing green slopes with precision. Compatible with any putter and all green surfaces for a seamless golfing experience. 4. **Wide Application** – A musthave for anyone serious about improving their putting skills. Our Golf Green Reader suits all players, from beginners to seasoned golfers.