Specially for 1¼ inch SU HS2 carburetor. Have highly polished chrome tops and bottoms and improved air filter, allowing better airflow while trapping more dirt. Very simple to install, simply bolts onto the face of the carburetor. Color: Chrome Material: Metal Size: 14x3cm Package Contents: 2 x High Air Flow Pancake Air Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.