Features: The small tip can slide through the weather bag seal to the probe connector. As acupunctures and moxibustion probes, they are used to pierce- the insulation of wires, so as to conduct automobile electrical measurement without damaging wires. When dealing with small circuit boards, they can be used as needle probes. This set of 5 probes is also equipped with 20 replacement pins, eliminating the need to replace the entire probe. Its diameter is very small, and the needle tip is particularly -sharp, making it an -ideal choice for penetrating the insulation of small diameter wires. Specifications: Material:ABS,Metal Color:Black,Blue,Yellow Red,Green Full probe length (1 piece): 65mm/2.56 inches. Pin length: 37mm/1.45 inches. Package Includes: 5x Test Probe Pins note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.