PVC sheath: Made of PVC material with good insulation, the overall jaws are perfectly joined, with strong clamping force and not easy to deform. Brass material: Nickel-plated brass is used, which has good conductivity, corrosion resistance and long service life. The end of the clip can be connected to a 4mm banana plug or welding wire, and the connection is stable. Wide range of applications: widely used in electronic instruments, industrial equipment, welding machinery, communication products, etc. Good elasticity: The clip is moderately elastic, used as a car battery clip or charging clip, and can also be used in electrical experiments.Quantity: (Pack of 10) Test Fixtures, other products not includedColor: red, blackNote, because there may be color and size difference between the light effect photo and the actual product, please allow 1-2 cm error