Our 7.5 mm Euro Mech Speargun Shafts come with 2 mini shark fin loading tabs and a 3rd rest tab for easy loading up to 148 CM. The 158 CM, 168 CM and 178 CM shafts come with 3 mini shark fin loading tabs and a 4th rest tab for easy loading. The threaded tip is necked down to 7 mm that works with a wide variety of available sliptips. Any