Ruler &ndash; Adhesive Backed Decal on a Roll &ndash; Fractional/Metric &ndash; 2 Inch (5 Centimeter) Long &ndash; Left to Right &ndash; 200 per Roll &ndash; Black Each ruler decal measures 2 inches on one side and 5 centimeters on the other. Decals are 1 inch wide by 2 1/2 inches long. Every roll contains x200 peel-and-stick rulers. Writing space on each unit makes them useful for labeling, identifying, and referencing. Non-Glare surface. Adhesive is both high-tack and decals are removable without residue.