brand new and high quality Features: Safety, grinding force is uniform, uniform processing results, abrasion resistance, water resistance, strong plasticity, flexibility is good, anti-clogging, suitable for workpieces of all kinds of shape Control cutting, grinding surface is not damaged; do not rust, do not fall off, grinding sound is small, less dust The polishing effectof black diamond grinding disc is better than the general angle grinding disc and flap wheel Application: Removal of general coating and polishing the surface. Can be used for low carbon steel, stainless steel, aluminum, cement, plastic, wood and stone surface. Suitable in the automotive repair industry, construction industry, chemical industry light industry, ship manufacturing & repairing industry, machinery manufacturing, furniture manufacturing, decoration industry, municipal engineering, and bicycle repair industry. Specifications: Material: Polyurethane coated, nylon cord Diameter: 100mm Bore size: 16mm Thickness: 14mm Color: Purple,Blue,Black Quantity: 1 Pc Note: No retail package Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Grinding Disc