Features: Excellent materials: multimeter piercing needles are made of durable stainless steel and copper. Nickel plating on the surface to protect the test needle from oxidation and ensure long-term use. Comfortable handle: The housing and handle section of the multimeter test lead probe sits in the PA insulation material. Test probe is lightweight and effective. Very Simple installation steps for beginners and professionals. Professional test probe: Removable probe can be tested in the multimeter or oscilloscope w/ the test line. The inner diameter of 4 mm of the banana probe can be connected to a normal banana plug.You can use it to calculate the electrical power. Hard and thin needles: the head diameter of the copper needle is 0.7 mm. Insulation piercing needle is thin but it is hard. You can use it to precisely pierce the outer surface of the cable for testing. Does not affect the integrity of the cable. Flexible operation and simple storage. Wide Application: cable probe test probes can be widely used in telecom testing, automotive maintenance,industrial field tests. Cable non-destructive testing. Can test in the internal banana plug socket. Also ideal for measuring small IC pins, LED lights and components. Ability to replace damaged parts in time. Package Includes: 8 Pcs Test Probes. Specifications: Product model: T0161 Product color: red, black Metal material: copper, stainless steel Plastic shell material: nylon Electrical parameters: 30Vac-60Vdc/Max.1A Single product net weight (g/unit): 3.1 Connection method: comes with 4 mm socket Applicable products: can be matched with the test line of a multimeter or oscilloscope note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!