Pre-Oiled Flame Laminated Dual-Stage Air Filter. Treated with No-Toil Evolution Filter Oil. Made to the same high standards as our Standard Air Filter, our Pre-Oiled Air Filters come treated with the perfect amount of our Evolution Air Filter Oil and are ready to go right out of the package. Gloves are included to keep your hands clean while taking care of this sticky situation. Fits: Honda CRF250F 2019-2022