#10/2 Thick Twisted Non-Impregnated Retraction Cord, 100" bottle of cord. Provides a complete view of the margin. Made with 100% absorbent cotton. Formulated to prevent tissue rigidity. Twisted for optimal retraction. Retrax is used by dentists to get full exposure of the margin 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 Retrax cords are specially twisted for added thickness to achieve optimal retraction without causing tissue rigidity. Each pack contains 100 inches of cord.