Get superior rubber dam protection without chancing an allergic reaction from sensitive patients or staff. Hygenic® Flexi-Dam Non-Latex Dental Dams are made of a highly elastic plastomer which can be elongated over 1000% — without tearing. Their excellent recovery properties contract the material closely around tooth for effective isolation. Flexi-Dam is non-toxic, odorless, tasteless, powder-free and chemical-resistant. 0.50mm thick x 6" square. Three-year shelf life. Violet color. 30 per box.