Lance® Rulers are precision tools, manufactured from hardened, aerospace aluminum with a clear, anodized, scratch-resistant finish. We use the highest quality materials and the finest of workmanship to guarantee smooth, clean work edges and easily read measure-ments. The accuracy and clarity of Lance® calibrations meet the highest standards in the industry. They are ISO-9001 certified and have been approved by the National Institute of Standards. A. Meyers sells these tools only through our worldwide distribution network.