This sinusoidal stake is perfect for anticlastic raising. Its wave like pattern means you can curve the metal in two directions. You will need to use a raising hammer( plastic or nylon). The stake is made from hardened steel and has Highly polished working surfaces. The wave amplitude on this stake tapers from 1-3/4" to 1/2. Overall length is 9” with tang 4”x ½”x1/2”. The head diameter of this this stake tapers from 7.5 to 13mm