ADVANTAGE- 48mm motorcycle air filter is designed with 45 degree bend inlet for more air flow into engine MATERIAL- Made of premium plastic,metal and rubber material. Chrome plated top shield and filter paper wrapped with metal aluminum mesh surface can effectively prevent dust particles from air FUNCTION- Designed to reduce the resistance of the engine air intake and improve per unit time air intake and volumetric efficiency when engine running and increase engine power and torque output INSTALLATION- Come with adjustable clamp, bolt on the machine directly. Washing the air filter to keep it clean could be reusable PACKAGE- 1 x 48mm Motorcycle Air Intake Filter. For any defective items or the reason of incompatibility, we would offer full back. If return window expires, please tell us