This tool is of superb quality and will make measuring and layout work easier and more accurate. Nicely polished with brass fittings. In addition, this tool has a unique quick-nut adjustment that is easy and fast to use. WARNING This product contains lead a chemical knonw to the State of California to cause cancer and birth defects or other reproductive harm. Do know place your hands in your mouth after handling product. Do not place the product in your mouth. Wash your hands after touching this product. , -