Matfer Bourgeat 150103 Exoglass  Plain Cutters Item is sold in a box of 8 Made of exoglass. somposite material developed by matfer. Not applicable Not Applicable Diameters 1 1/8-inch, 1 1/2-inch, 2-inch, 2 3/8-inch, 2 3/4-inch, 3 1/8-inch, 3 1/2-inch, 4-inch.