Jason Type 400 flat belts are single-ply, endless woven belts built to the rigid standards necessary to meet the demands of modern high speed compact drives requiring flat belts. These belts are interchangeable with Gates Speed Flex, #400 Panther, Tilton Super speed and Fenner Ultra Speed 400. Jason Type 400 Endless Woven Flat belts are available in 1/2-inch increments from 8 up to 62.5 inches, and in 1-inch increments from 63 up to 142 inches. These high-performance flat belts have a single-ply of endless woven polyester cord bonded to an oil-resistant, non-marking, static conducting chloroprene rubber cover. Belts are specified by length in inches, the letter "M" and width in one-hundredths of an inch; i.e., 36.0M125.