230-12-6197 Performance Air Filter After-Market Performance Shielded Case Air Filter. This after-market filter comes with a transparent blue shield and is used on a large variety of vehicles with 49cc, 70cc, 90cc, 100cc, 110cc and 125cc 4-stroke Horizontal Cylinder engine based vehicles such as Dirt Bikes, ATVs, Dune Buggies, Super Pocket Bikes and much more. Inner Diameter: 37 mm Outer Diameter: 46 mm Height: 69 mm Overall Diameter: 72 mm This comes with a hard plastic covering protecting the air filter