The helically wound tensile cords are specially engineered, twisted and chemically set stranded fiberglass material , Made in china HTD5M-390 Rubber Timing Belt 78 Teeth Closed Loop Pulley Timing Belt 15mm Width 390mm Pitch Length 5f00faa1 B3a2 4b52 Ba7d Fe9e3b27a36c.fedb9710026a04d9a42cddd4ab763a46 15mm Width Fiberglass Belt POWGE HTD 3M Timing Belt Pitch Length 372/375/378/381/384/387/390/393/396/399mm 15mm Width Belt If you're looking for a reliable timing belt replacement, this D&D PowerDrive 390-3M-15 synchronous timing belt has got you covered. Made from durable neoprene rubber with that specific 3M tooth profile, this thing is built to last and handle your power transmission needs Timing belt 3M 15 x 390 mm pl T130 D&D PowerDrive 394L075 Timing Belt. Timing Belt L 0.75 x 39.4in PL T105. D&D PowerDrive trapezoidal tooth timing belts are high capacity Belts The belts exceed USA RMA published ratings levels.