Recently we added Yellotools line of Safety rulers to our product line. This 2 in 1 ruler is available in a 54" length includes a sliding hand cutter. the safety ruler can be used with our without the included cover and the unique design of the aluminum ruler protects your hands while making a cut. This is the perfect companion product to the Saw Trax Coro Claws when cutting coroplast - the coro claw can cut with the flute while the Safety ruler can cut across the flutes.