... #, 75#, 80#... 191# etc PU Sewing machine motor belts1) PU material 2) Single-side teeth,double-side teeth 3) Free sample All types of ... Sewing Machine Belts we have, you could find ... . Single teeth, MB-200,210, 250, 260...450,etc and double teeth60#, 70#, 75#, 80#... 191# etc orange color, black color ...