Kruzer Kaddy 900 Kan-Do Kaddy Silver Universal Mount Drink/Accessory Holder 3 mounting options: Clamped, drilled through with mounting plate, drilled and tapped to 1/4-20 thread Attach to round tubing (3/4 inch to 2 inches diameter) Attach to square tubing (1/2 inch to 1-1/2 inch) Attach to flat or sloped surfaces Attaches to plastic, aluminum, steel and fiberglass