Impregnated with a solution of aluminum sulfate, then dried by a special process, assuring both consistent aluminum sulfate content and hemostatic retraction properties. Provides great versatility in all types of procedures. Made with 100% absorbent cotton. Strands do not tangle with instruments. Braided to prevent unnecessary bloodloss. SilTrax AS Braided Retraction Cord is used by dentists to get a clear view of a tooth before creating an impression. The cord is made using absorbent 100% cotton material that adapts easily to the sulcus, allowing for use in all retraction techniques.All SilTrax cords are specially braided for added thickness to achieve better retraction and improved hemostatic control without fraying and tangling with instruments. Available in plain, aluminum sulfate, and epinephrene variants.Each pack contains 72 inches of cord.