Wax cast steel, not polished, this sight is a reproduction of those found on H.E. Leman trade rifles. This sight is suitable for a long rifle with a 15/16", or 1" octagon barrel. This high sight reduces heat mirage, and tilt minimizes glare. Sight has a notch cast in the blade, which can easily be enlarged if necessary. Made in the U. S. A., dovetail to a depth of .050", dovetail is .370" long, and .560" wide with the edges chamfered as found on the antique rifles. Height from the bottom of the dovetail to the top of the sight notch is 0.26".