1. Made of high quality materials, the filter is durable in for a long time, washable no oil design. 2. Comes with for easy and adjusting. 3. Easy to fit, can be secured tightly onto your vehicle pipe, and you can adjust to the size required with flat head screwdriver. 4. The filter prevents abrasive particulate matter from entering the engine's cylinders to ultimately increase horsepower, torque and the gas mileage. 5. It will allow your bike to do and generate much more , prolong the engine life. Product Name: Filter Dimension: 74x78mm / 2.9x3.1inch (L x W) Inside diameter: 44mm Machine Type: Off-Road Motorcycle Application: universal fits for motorcycle filter with 44mm engine inlet. Fitments: For GY6 125cc 150cc 250cc DIRT ATV QUAD PIT BIKE (The Compatibility Is Just For Reference. Please Compare Your Original One Before Purchasing!) Note: No Instructions Included.Professional Installation Is Highly Recommended! colour: gray Material: metal Package Contents: 1 x Filter Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.