Mustad 39937NP-DT-20/0. This is the "oversized" hook designed by Mustad for catching great white sharks as well as monster Tigers, Mako's and Hammerheads. It was developed with the input from the crew of "Shark Men" and Capt. Chris Fischer. Modeled after the Mustad 39960D in proportions, but much larger and stronger. Sold individually. only available in a size 20/0.