1040303 caterpillar:retainer RETAINER

45mm Universal fit "Bullet" Air Filter - Motorcycle Scooter Pocket Bike - Gold (Model 10403-03)
New Performance Air Filter 45mm for Scooters, Motorcycles, ATVs, Pocket Bikes || High Air Flow with Excellent Filtration Materials. || Added Value: Comes with Clamp, Easy to Install and Maintain. || Fits 45mm Carburetor Opening (+- 1mm) (Intake Side) || Pliable flanges absorb vibration and can be stretched up to 1/16 In. to fit in-between sizes.