Feature:1. Feature: The 4 in 1 air filter can reduce the engine's air intake resistance, and improve the air intake and volume efficiency per unit time when the engine is running.2. Main Function: The air intake cleaner could enhance the intake air flow, filter the impurities in the air, and let motorcycle engine breathe more smoothly.3. Better Protection: The air cleaner will prevent the suspended dust in the air from being sucked into the cylinder to reduce the wear of the piston and the cylinder.4. Fitemnt: Package includes four adapters with the inner diameter of 35mm 42mm 48mm 50mm, fits for GY6 Engine, replacement for SUZUKI, fits for SSR, suitable for pit bike, mini bike, sport utility vehicle.5. Installation: Can be installed in front of the carburetor or intake pipe to filter dust and sand particles in the air to ensure sufficient and clean air in the cylinder.Specification:Item Type: Air FilterMaterial: Plastic, metal, filterAdapter Inner Diameter: Approx. 35mm/1.38in, 42mm/1.65in, 48mm/1.89in, 50mm/1.97inFitment:Fits for GY6 EngineFits for TTRReplacement for SUZUKIFits for SSRSuitable for pit bike, mini bike, sport utility vehicle .Package List:1 x Air Filter3 x Adapter