Dico 527-41-4 Cushion Sewn 4-Inch Diameter 3/4-Inch Thick Buffing Wheel Buffing Wheels used for light Cutting and Coloring 1/2", 3/4" and 1" Buffing Wheels Blistered Packaged have (1") Arbor Hole with DICO toothed Flanges for (1/2") Spindle Buffs Sizes: 4", 6", 8"