*Product cannot to be sold on any 3rd Party site such as Amazon, Etsy, Ebay or any other 3rd Party sites, unless approved by the manufacturer.* The ''original black and yellow'' rulers offers a multitude of distinct advantages including a double sight line. These precision laser-cut rulers are accurate to .005 inches. It’s easy to mark or cut accurately whether you’re working on light or dark fabrics. Designed for both left and right handed users. Made of heavy duty, clear acrylic plastic.