Our quality made 4" diameter by 30 ply Yellow Muslin buffs (with pinhole center) have 3 circles of concentric stitching between the arbor hole and the face of the buff.  Yellow Muslin buffs are chemically treated which increases their thickness for better surface area coverage.  Can be used for cutting or polishing when used on harder metals, like platinum, palladium, steel and stainless steel. Lasts up to three times longer than untreated white buffs and are manufactured with fine-weave muslin with combed edges. Made in USA