Shop Print Media, No drawers, 92% Polyester / 8% Spandex, Dry Pro™, Submucosal Lifting Agent, For Osmometers, 1.27 mm Inner Diameter / 6.4 mm Inner Flange Diameter / 3.8 mm Outer Flange Diameter / 2.4 mm Inner Flange Distance / 3.5 mm Total Length