✅ TOP WOOL MATERIAL --- SI FANG wool polishing wheel disc is made of high quality soft elastic wool material, the wool is fine and pure white, not easy to fall off. They're tough, and yet soft enough to polish metal effectively. The polishing effect and service life are much higher than ordinary wool wheels..✅WHAT YOU GET ---Includes 6 packs of wool polishing wheel discs. diameter 4-1/2 inches /115mm, aperture 7/8 inches (22.2mm), thickness 12mm, wool: very Fine. Suitable for 7/8'' arbor angle grinder..✅STURDY AND DURABLE-- The Wool Polishing Wheel Disc are made with a fiberglass backing plate that effectively absorbs vibrations without smear during usage, bringing more stable and efficient grinding. The flaps are solid and the backing is strong with a metal reinforced hole. Make sure you don't get too aggressive, build up extra heat, or overwork a dirty pad..✅ WIDELY APPLICABLE FOR MULTI-PURPOSE ---Widely used in the repair industry, household appliances, mechanical equipment, precision instruments etc. Designed for polishing project surfaces in the final stage to get a high gloss or mirror finish. Suitable for stainless steel, aluminum, automobile processing, non-ferrous metal processing..✅AFTER-SALES SERVICE -- -We guarantee to provide you with the most satisfactory shopping service, no matter if you have any questions about our product,you are welcome to contact our customer service,we will try our best to help you solve all your troubles.