The Big Horn 19641 is a Rotape Tape Compass. Big Horn"s 19641 is the original Rotape Beam Compass from Brat Manuf. This marking device combines a measuring tape and pencil scribe in one pocket size tool. It makes a radius from 3-1/2-Inches to 6-feet. It also can be used to mark straight and parallel lines, arcs, and circles. Use on wood, steel, concrete, drywall, fabric, chalkboard, and more. Includes centering pin, collett and pencil lead. Replaces the standard beam compass and trammel point set. Made in USA. Features: * The original Rotape Beam Compass * Combines a measuring tape and pencil scribe in one pocket size tool * It makes a radius from 3-1/2-Inches to 6-feet. Also can be used to mark straight and parallel lines, arcs, and circles * Replaces the standard beam compass and trammel point set. * Made in USA What"s In the Box: * Big Horn 19641 Rotape Tape Compass