HTD D3M double sided timing belts are most commonly offered in widths of 6mm, 9mm and 15mm, while custom sizes (lengths, widths and pitches) are available upon request. We are A leading global manufacturer of high-performance belts such as rubber timing belts, polyurethane timing belts, v belts and other belts. Plenty of ready stock for up to 30,000 different SKUs. More detail please visit https://www.zzr-parts.com/double-sided-rubber-timing-belts/htd-d3m-double-sided-synchronous-timing-belts/