Moderate flexibility fits workpiece contours perfectly. Multiple densities & grits for progressive grinding from rough to bright polish. Removes fine machining lines, minor burrs, surface stains. Soft consistent satin finish without deep cutting marks. Open structure dissipates heat, prevents thermal deformation on aluminum & thin stainless. Stainless steel kitchenware, sanitary hardware, watch accessories, automotive decorative parts, plastic molds. Desktop polishers & automatic machines compatible. High-density for heavy scratch removal, low-density soft for mirror pre-finishing. Break-resistant, consistent performance.