Fender Hash Mark Decals - 2004-2008 Pontiac Grand Prix - (Color: Flat Black) Pair of vinyl Hash Mark decals to be applied to the fenders. Choose a color from above and wait for the page to refresh. 3" wide stripes, spaced 1/2" apart. 14" Length. Trim to fit. Tilt at the angle you want, apply, then trim. Detailed Installation Instructions included.