Kraft Tool PL400 Genuine Extra-Lite Smooth Edge Magnesium Darby with 1 Knob and 15-Inch Rib Handle, 42-Inch Lightweight magnesium darby is very strong with a popular design preferred by most plasterers Raised ridges on each side for extra strength Smooth edge 42-inches by 3-1/2-inches with 15-inch long rib handle 3-count carton proudly made in the U.S.A.