Shop Print Media, No drawers, Dry Pro™, Submucosal Lifting Agent, 50 Foot Length, 1.27 mm Inner Diameter / 2.84 mm Inner Flange Diameter / 2.84 mm Outer flange Diameter / 1.43 mm Inner Flange Distance / 2.0 mm Total Length, Male 9 to 11 / Female 10 to 12