Madam Butterfly Articulating Silk is made from high quality natural silk. This silk is highly tear-resistant and, because of its low thickness and good flexibility, it adapts perfectly to cusps and fossae. The marking of silk is extremely precise and therefore suitable for more delicate preparations. Madame Butterfly consists of fibrils, a tube-shaped protein structure which, because of its composition, has a high color reservoir capacity. Articulating Silk is especially suitable for the use on a laboratory model because one strip can be used up to ten times and is thus economical. Ideal for Marking Mounted Models and Dentures.