This probe set is used to pierce the insulation layer of wires for automotive electrical measurements, which does not damage the wires. And it has a banana plug for use in combination with the oscilloscope. An ideal too set for automotive diagnosis, test and repair. Features:1. Pin with small diameter makes it ideal for piercing the insulation of small gauge wires.2. It is recoverable. if the pin gets damaged or useless, just pull out the old pin and install the new one.3. The probe has a banana plug for use in combination with the oscilloscope.4. Comes with 20 replacement pins, convenient to replace the damaged or useless one.5. They can also work as pin-tip probes for small circuit boards. Specification:Condition: Brand newProbe Casing Color: Red, Black, Yellow, Green, BlueProbe Total Length: 65mm/2.56inPin Length: 28mm/1.10inWeight: Approx. 35g/1.2oz Package list:5 * Complete Probes20 * Replacement Pins Note:1. Due to the difference between monitors and light effect, the pictures may not reflect the actual color of the item.2. Please allow slight error due to manual measurement. Thanks for your understanding.