Hodge Silk Swabs are premium swabs made from pure silk for removing moisture from woodwind instruments after each use. Hodge uses silk because it is absorbent, has no lint, and is compressible. Hodge swabs are regularly recommended by repairmen for optimum care of your instrument. The bassoon bocal swabs have a safety cord on the back end, so that if there were a knot in one and it got stuck, it could be pulled back out the way it went in.