The Hodge Silk Alto Saxophone Swab is made from 100% silk. Silk is very absorbent, soaking up water in instruments better than any other natural material on the market, including both cotton and chamois. Most uniquely, silk is also very compressible, making it possible to pull through instruments with large variations in bore size. In addition, silk is lint free. The alto saxophone swab uses a plastic-coated lead weight.