Packing: 1pcs Material: Metal Size: 30mm(1.18in) x 100mm(3.94in) Rustproof, corrosion-resistant, not easy to break off, can be used for a long time Frosted surface texture, stylish and lightweight, easy to carry The frosted plate can easily and quickly sharpen the curvature of your favorite knife tip and further repair the curvature to make the tip more grippy Instructions:Simple to use, just place the tip on the cue and gently sand it a few times. Used to sharpen your pool cue to help you get a better grip on the chalk and improve your hit rate and ball bagging probability