Thank you for viewing! (^-^) This is an iron groove repair tool (groove cutter, groove shaver) for sale. Size: 11.2 * 2.3cm OK for both right-handed and left-handed users. The main body has a mesh pattern, making it non-slip and a safe product (˃̵ᴗ˂̵) As you use your clubs, dirt can get into the grooves etched on the face, and the edges can become rounded, weakening the ball's grip. Use this product to refresh them. Improves ball spin and control (^○^) Also, cleaning the grooves with this product after a round will help prevent deterioration due to rust on the grooves♪ 《How to Use》 There are six blades, so please use them as you like. ① Press the tool against the face groove. ② Slide it little by little while pressing it into the groove. ※ The amount of shaving increases when the angle is raised, and decreases when it is lowered (I think an angle of about 30 degrees to the face is good) ③ Shave until you reach your desired depth. I also have many other golf goods for sale. If you leave a comment, I can offer a discount and list them as a set, so I hope you will take a look (^_^*) 〓Product List〓 #kuu-shop golf backspin golf ball competition wedge