A surprisingly cute little reflex hammer. Has a sharp screw-in pin at the top as well as a soft screw-in brush at the bottom, useful for various neurological tests. Kind of a swiss-army percussion hammer. It doesn't have much weight to it compared to our troemner, 2.8 ounces, but its all-metal body gives it more than it looks like. Chromium plated brass, all non-magnetic except the pin which is high-carbon steel.