The air filter prevents abrasive particles in the engine's cylinders to ultimately increase horse, and improve the gas mileage. Made from materials, the air filter is durable in use for a long time. Comes with clamp and flush rubber adapters for easy use and adjustment. Easy to fit, can be secured securely on your vehicle pipe, and you can adjust to the size required with flat screwdriver. Fits for most Off-road Motorcycle ATV Quad Dirt Pit Bike. colour: Blue Material: Metal Inlet Diameter: Approx. 38mm / 1.5 inch size: 80*90*80mm Package Contents: 1 x Air filter Note: Easy to install, but professional installation is highly recommended. Only the above package content, other products are not included. Note: different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. The air filter prevents abrasive particles in the engine's cylinders to ultimately increase horse, and improve the gas mileage.Made from materials, the air filter is durable in use for a long time.Comes with clamp and flush rubber adapters for easy use and adjustment.Easy to fit, can be secured securely on your vehicle pipe, and you can adjust to the size required with flat screwdriver.Fits for most Off-road Motorcycle ATV Quad Dirt Pit Bike.