The Spro ball weights can be easily combined with the Spro Softbait Spiral Stingers and the 54 mm Softbait Spiral. This allows for excellent bait presentation and gives the spin fisherman flexibility, as they can quickly adapt to changing fishing conditions. The lead heads can be mounted on the spinning system in no time, without needing to change the entire rubber bait. It is sufficient to simply unhook the rubber fish from the swivel, remove the lead weight, and attach a different ball weight to the rubber fish system. This setup is not only quick and easy, but it also preserves the rubber baits over time, as there is no need to constantly replace the entire jig hook. The lead heads are particularly well-suited for pike fishing, zander fishing, and perch fishing with rubber baits. The Spro Spiral Weights Assorti lead weights are ideal for rubber fish fishing.