Why is Chinese string so dangerous: Whereas, a kite shopkeeper told that Chinese string is made of nylon or synthetic thread. And to make it sharp, powdered glass and metal particles are used. He said that it is sharper and cheaper than cotton string, so some kite lovers prefer to buy it ignoring the risks involved. The cost of a normal cotton manjha pulley is 4000 rupees, whereas at the same price 4000 meter sugar manjha pulley can be bought. 40004000