Features 1、Made of diamond and resin 2、Using special binding agent 3、Strong grinding force and smoothness 4、Polish quickly and use for long time 5、No color left on stone after polishing Specification Description: This grinding disc uses diamond as abrasion and combined with composite material. Sharp, wear-resistant and high efficiency. Features: 1, Using special binding agent. 2, Strong grinding force and smoothness. 3, Polish quickly and use for long time. 4, No color left on stone after polishing. 5, Mainly used for stone, glass, ceramics, crystal, ceramic stone, concrete, etc. Specifications: Diameter: 125mm / 4.92" Thickness: 3mm / 0.11" Inner Diameter: 20mm / 0.78" Granularity: 50/150/300/500/1000/2000/3000(Optional) Materiel: Diamond + resin Suitable for large model 150, model 180 grinding machine or edge grinding machine. 50 Grit - coarse polishing 150 Grit - coarse polishing 300 Grit - coarse polishing 500 Grit - medium polishing 1000 Grit - medium polishing 2000 Grit - medium polishing 3000 Grit - buffing Package Includes: 1 x Grinding Disc(Backing pad/disc is not included) Note: Please add water when you operate. Package List