No Toil Air Filter and Keepitroostin Sticker Fits Yamaha Yz250f 2001-2012 Fits Yamaha Yz250f 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 DUAL STAGE FOAM: Two different pore sizes create more trapping area for even the smallest dust particles FLAME LAMINATED FOAM: Both "stages" are not glued, but heat sealed to provide maximum air flow RETICULATED FOAM: Increases dirt stopping surface area nd increase foam strength Strongest glue seams will withstand harsh solvents and gas. Pull as hard as can, foam will rip before the glued seam will Light color foam easier to spot where the filter oil has covered and where it has not OEM size for more dirt stopping capability