Bond's most economical weave of 20/12 mesh (USP VII - 32 yarns/inch) cotton gauze is most efficient when used in the supplied folded, plied form. Bond uses only US Pharmacopoea (USP) medical-grade gauze. A Roll is 36 inches folded to 4-ply, 9 inch width by 150 continuous yards length (equivalent to 300 standard pieces). Rolls are the most economical form of tack cloth "put-up". A variety of proprietary tack treatment formulas is available. Choose from Bond's GOLD STANDARD, WHITE STANDARD and BWT? -- all at the same price. Inquire about larger rolls at discount, customized tack formulas or treatment weights, volume or contract pricing, and many other options.