Imitation Sinew available in 10 yard roll, 1 oz. tubes (approx. 150 ft.), or 1/2 lb. spools (approx. 1200 ft.). Very strong, waxed nylon that can be split like real sinew, into thinner strands. It cannot be broken by hand. This is great for stringing chokers, breastplates, sewing moccasins, and dreamcatchers.