& WEAR- - It is made of high quality diamond and resin which features fast grinding, good flexibility, and wear-resistance. It polish surfaces to their glossiest without causing damage.UPGRADE CONNECTOR - Unlike the traditional sticky disc that may fall off causing the grinder speed should not be too fast.This disc takes one-piece nylon bayonet. It comes with a screw design that you can tighten directly. The design is safe and stable.LONG-LASTING PERFORMANCE - you can get the quickly and efficiently without having to worry about needing to replace the disc too often. Wet and dry polishing is available by this disc.WIDE RANGE OF STONE PROJECTS - They are perfect for all solid materials such as , Concrete, Marble, Stone, Tiles, glass etc. Ideal for counter-tops, tabletops, and splash-backs, and any other job for residential, industrial floors.SPECIFICATIONProcessing object: Stone, Tile, GlassFunction: Trimming, DeburringApplicable models: 100-type angle grinderTips: The product may be updated constantly, Due to Different Batches, The Actual Product May Have Slight Differences or Color Differences, Which Does Not Affect UseColour:Photo ColorMaterial:Diamond+PlasticSize:4inch 100MMPackage Contents:10x Stone Trimming and Polishing DiscOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.