Twin Air Filter and Keepitroostin Sticker Fits Honda Cr125 Cr250 Cr500 1988-2001 Fits Honda Cr125 Cr250 Cr500 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Ready to Run, 6 mm outer foam,10 mm inner foam,Bonded dual stage 16 mm filtering thickness,Plush 13 mm sealing foam,Industrial high strength glued seams Provides maximum airflow and increased horsepower,Dual stage open foam matrix,Pre-oiled with Maxima FFT,Complete with disposable gloves, Dyno tested, race proven