Thin Red Line Decal Full Color Vinyl Window Decal. Decal Size= 6 inches. “The Thin Red Line of Courage” represents the last ounce of courage firefighters find deep in their blood to conquer their darkest fears in order to save and protect life and property. Text can be added to this decal. ThinRL$6.00 Decal Size: 6 inches8 inches(+$3.50)10 inches(+$5.00)12 inches(+$8.00) Add text in red line : NOYES(+$5.00) : SELECT THIS LINK FOR CUSTOM FIRE DEPARTMENT DECALS / STICKERS Last Updated February . 10th, 2009