This product is a car detection needle, made of copper, stainless steel, nylon materials, safe and practical, can help you complete the circuit inspection work well. The excellent production technology and reasonable design make it not only efficient and practical but also easy to use, which can be easily applied to automotive connectors. This is a simple and practical testing tool that will bring great convenience to your work. Features -Color:Assorted Color -Material: Copper, Stainless Steel, Nylon -Size: Aboout 8.00X0.30X0.30cm/3.14X0.12X0.12inch -The product is light and easy to use, easy to carry and store, and will not be easily lost. -Made of stainless steel and nylon, safe and practical, with a wide range of applications. -The threading probe is a practical maintenance tool for automobile diagnostic testing. -It is very practical and can help check potential safety hazards. -As a test probe, it can easily pierce the insulation layer of the wire, thereby helping you understand the state of the car without damaging the wire. Package list: 10 probes