Dimensions & Easy Installation:6-inch buffing wheels with 1/2" arbor hole, fit most 6-inch bench grinders.Quick to mount and replace, ideal for polishing beginners and professionals.Perfect for most standard bench grinders and polisher machines, but also used with angle grinders, drill and other rotary power tools Complete Polishing Compound Set:4 Polishing Pastes: From coarse to fine, black, brown, white, green. Gently the polishing paste onto the bench buffing wheel. The friction and heat generated draw the paste onto the wheel for polishing.And the polished object have a high-gloss effect to increase visual appeal 4 Hardness Polishing Wheels: From coarse to soft: 1pcs 30-ply denim polishing wheel for coarse polishing, 1pcs 50-ply yellow cotton polishing wheel for medium polishing, 1pcs 42-ply white cotton polishing wheel for fine polishing, 1pcs 30-ply flannel polishing wheel for final polishing Wide Applications:Perfect for polishing stainless steel, brass, aluminum, cast iron, and other metals. Also works on plastic, ceramic, glass, auto body repair, and jewelry finishing High Efficiency Combination Kit:Complete 8PCS set with 4 buffing wheels + 4 polishing compounds. Strong grinding force, high efficiency, and material meet all your polishing and finishing needs Color: Random Color Material: Cotton Fabric Package Contents: 1/set buffing wheel Only 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.