Features chrome-plated mounting hardware with rubber liner foam cup insert drainage hole and hex key wrench plus extra screws. Mounts to just about any round or square tube from 3/8" to 1-1/2" in diameter. May also be used for bicycles ATVs boats and even lawn chairs. Holder measures 3-1/2" diameter 4" height. Gift boxed. Item Summary: Drinkware Misc Motorcycle Dispensers