Designed to increase air intake and acceleration High air flow with excellent filtration Clamp-on washable and reusable air filter Washable and Reusable Air Filter One-piece Air Filter Size:42mm High Performance Replacement Air Filter 42mm High Flow Air Filter Motorcycle Air Filter for Honda Yamaha Kawasaki Suzuki ATV Dirt Bike GY6 Material: Four layers of nonwoven fabric. Size: 42mm 5.Color: Red Package Including: 1x 42mm Air Filter Fitment: 48mm air input side diameter carburetor, dirt bike, scooter. If you need any assistance, please contact us.