45mm Air Filter Clamp On Pod Foam UNI Style 125cc/150cc GY6 4 Stroke QMJ/QMI157, QMJ/QMI152 - AF45 CLAMP ON POD FOAM UNI STYLE 45mm 125cc/150cc Straight Black Coarse Foam (washable), Urethane Flange Enhance Performance, Maximum Air Flow Design Easy Clamp On System, installs directly on the back of the carb (after original air filter has been removed)