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: Component:ABS,Metal Color:Black,Blue,Yellow Red,Green Full probe length (1 piece): 65 mm/2.56 inches. Pin length: 37 mm/1.45 inches. Package Includes: 5Pcs 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.