Cheap And Discounts Width 6 10 15 20mm HTD 3M Rubber Timing Belt Length 90mm - 255mm Closed Loop Synchronous Belt Pitch 3mm 30Teeth - 85Teeth Wholesale. Buy Directly From Merchant HengKun Hardware Store Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.