Description Striping roads has never been easier! Paint straight or curvy lines cleanly and confidently. Scale ruler helps you mark sidewalks, roads, parking lots and other markings on paved areas to scale accurately. Raised inking edge prevents smears. Use edge for alignment and marked guide for correct road-striping markings. Create track plans and custom templates. Retains curve without having to hold it. Flexi-Edge is 18\" in length. Ruler markings include scaled grid for striping N, HO and O scale roads and 40' scale ruler for N, HO and O. Ruler information also includes scaled measurements for the width of N, HO and O parking spaces, sidewalks, rural roads and highways.