Feature●Monkey 1.6 inch (40 mm) Air Funnel Made of Aluminum, Length 1.3 inches (34 mm), Cab Mounting 2.0 inches (50 mm), Diameter 3.1 inches (80 mm)●monkeyDescription Monkey 1.6 inch (40 mm) Air Funnel Made of Aluminum, Length 1.3 inches (34 mm), Cab Mounting 2.0 inches (50 mm), Diameter 3.1 inches (80 mm)