The Salvimar Spear Head Harpoon is designed for spearo's who take their sport seriously. With a Tahitian style shaft embedded with a barb, this spear head is designed to stay in even the biggest of catches. With an M6 female thread, you can easily swap it out from a standard 14mm pole spear cluster head. Built to last with 17-4 PH Stainless construction, you’ll always have the same reliable performance, dive after dive.