Heat treated, tempered stainless steel, finned, flopper style spear shaft for spearfishing spearguns. Uses three shark-?n tabs for easier loading instead of notches. Choose the power that you need. It has a diameter of 7 mm, ideal for medium-big size fishes. Will accept any Cressi threaded spear tip. Thread diameter: 6 mm. Compatible with lined wishbone rubber bands. It features 3 finned tabs allowing different power. Original replacement shaft for the Cressi Cherokee Ocean model. Compatible with Cherokee Fast, Cherokee Exo, Cherokee Power, and Yuma Fast. The Threaded Finned Shaft  7 mm is designed and manufactured in Italy by Cressi, an Italian brand pioneer in freediving, spearfishing, and scuba diving equipment since 1946. The product is covered by a 2-year limited warranty.