The halibut hammer is a very effective tool for night diving for halibut and possibly other unsuspecting species like cabezon, lingcod, and several other rock fish. It was designed locally in California as a good alternative of carrying a speargun around at night while lobster diving. Our Halibut hammer is the highest quality hammer in the market and the only one made with a hardened stainless steel post and a solid stainless handle instead of a pipe and a solid grip with an anti slip surface. No more welds falling apart while fighting a monster . The design alone of our hammer will make you a more effective hunter. WARNING: This product can expose you to chemicals including lead, which is [are] known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.