SpearPro Evo Euro 7.00mm Single Flopper Shaft 3 SharkfinsSpearPro Evo Euro 7. 00mm Single Flopper Shaft 3 Sharkfins Engineered for durability and accuracy, this high performance speargun shaft is crafted from hardened Sandvik steel (49 Rockwell). Designed to fit any Euro style trigger mechanism, it offers seamless compatibility with a wide range of spearguns. Equipped with three laser welded smooth sharkfin loading tabs, the shaft ensures easy loading and optimal power transfer. The tuned flopper provides