Material: Stainless Steel 304 equivalent While both the barb and the vest are used in a similar way to catch fish at a single point, the barb type is attractive because it requires no line maintenance or tackle preparation, and can be used simply by tightening a screw. Due to revisions to the Fishery Regulatory Law, there are areas that stipulate that the tip must be fixed to the harpoon. In that respect, this does not fall under prohibited items, so you can use it with peace of mind. All of our harpoons will fit. It may also be possible to use it with other harpoons if the tip has an M6 screw. ＜Size＞ Connection screw for harpoon: M6 male Diameter: 7mm Barb length: 4cm ＜Care＞ After use, wash thoroughly with water and dry. In particular, wash the rivet part where the barb is attached carefully. #Harpoon tips that can be used with Liberino's adapter