HIFROM(TM) 35mm Air Filter for ATV Dirt Pit Bike 4 Wheeler Go Kart Quad Dune Buggy Red 1. Inside diameter: 35mm 2. Red color 3. It fits for ATV Dirt Bike Go Kart Pit Bike 4 Wheeler Quad Dune Buggy 4. Please check the pictures and size carefully before you buy it 5. HIFROM focus on provide high quality air filter at fair price, Professional technical support; if you unsatisfy with our product, you can return to our USA warehouse, no risk.