ECONOMY PKG: 5" X 5" BLUE, HEAVY, 100 PIECES/BX, SOLD AS BOX FOUR 10001221Economy Pkg: 5" X 5" Blue, Heavy, 100 Pieces Bx, Sold As Box Four 10001221 Four D Rubber Isodam Dental Dam Four D Rubber Isodam Dental Dam The Isodam Latex Free Dental Dam Is Particularly Sought After Due To Its Allergy Protection Characteristics And Superb Physical Properties. The Polyisoprene Material Used To Create The Isodam Allows For An Incredible Up To 1100% Elongation That Virtually Eliminates Tearing Even With A Punched Dam. Economy Pkg: 5" X