Leave No Dust Behind - Resin coated tack rags pick up dust particles that could otherwise mar a beautiful finish. Tack Rags are sold in 12 piece packs. Each tack cloth measures 18in. x 36in.. Compatible with all primers, sealers, lacquers, enamels, urethanes varnishes and more. NOTE: The in.Chrystal Tack Ragsin. are finer weave than the in.Surgical Bluein. (34179)