This U-type banana plug is used for replacing the head of the probe during the inspection and maintenance of the power system. It is widely used in electrical maintenance, automatic electrical equipment, physics teaching, laboratories and other places for testing and debugging.SpecificationColor: Black, RedMaterial: Copper, PVCTotal Size: 44x12mm / 1.73x0.47" (L*W)U-type Head Width: 6mm / 0.24"Tail Hole Diameter: 4mm / 0.08"Package List: 4 x Banana PlugsAdvantageU-Type Design makes it easy to clamp things flexibly in the circuit board.The banana plugs are made of copper, it has stable conductivity, not easy to rust, convenient to assemble it. Moreover, they are light and compact, which is easy to store and carry outside.InstructionConnect it to the test lead, then test the machines with the plugs.NOTEPlease pay attention to the tail hole diameter before you order.