GOOFIT Air Filter for 2-stroke 43cc(40-5) 49cc(44-5) Pocket Bike The item fits for 2-stroke 43cc(40-5) & 49cc(44-5) Engine Air Filter Brand New Arrival within 1-2 days (Sold by GOOFIT and Fulfilled by Amazon) Arrival within 7-15 days (Ships from and sold by GOOFIT)