Features: 1.4mm Socket: A 4mm standard female banana socket at the end can be connected to most test and diagnostic equipment for a wide range of applications. 2.Safe and Easy to Operate: No need to cut the cable sheath, just need to pierce the wire cable sheath for testing, safe and reliable,very easy to use. 3.Insulated Shell: The line probe has a PVC insulated housing, and holding the conductor provides a more secure connection and is completely safe to use. 4.Portable: Wire piercing probes are compact and easy to fit into a toolbox, not take up many space, and you can easily take it out to repair circuits at any time. 5.Puncture Probe Set: This is a set of two, red and black, suitable for various circuit detection of cars, can be used for a long time, very practical car repairing tool. Specification: Item Type: Wire Piercing Probe Material: ABS Number: Two Fit for automotive circuit detection