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. Made of tempered anti-corrosive 17-4 PH stainless steel. The steel has excellent resistance to bending, impact, and breakage without the need for hardening. It has a diameter of 7 mm, ideal for medium-big size fishes. To be used with lined whishbone elastic rubber bands. Compatible with Cherokee Fast, Cherokee Exo, Cherokee Power, and Yuma Fast. The Inox 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.