Thank you for viewing. These are primarily for boat fishing, specifically squid fishing, and are squid jigs. They are a lightweight type. They have been used a little. While mainly for boat fishing, I personally enjoy a unique fishing method. I use a bottom rig with about three squid jigs and cast from the breakwater to catch spear squid, Japanese flying squid, and cuttlefish. I caught quite a lot. Regarding their use, I believe there are no issues. Please refrain from complaints after the product is handed over. Price reduced! Now 2889 yen! #Squid #SquidJig #BoatFishing #Casting Species...Squid