Product Contents: You will receive 4 puncture probes in two sizes (2mm and 4mm), a sufficient quantity to meet your daily use and replacement needs. Universal Sizes: The insulation puncture clips come in two different pin sizes: 2mm/0.08 inch and 4mm/0.16 inch. You can choose the appropriate size according to your actual needs. Superior Materials: Our puncture probes are made of materials, making them robust and reliable, and not easily broken or . You can use them with confidence. Wire Protection: The puncture probes contact insulated wires without cutting or stripping the insulation, protecting the wires during testing. Wide Applications: These insulation puncture clip tools are widely used in equipment maintenance, electrical maintenance, and automotive maintenance. Suitable for testing multimeters, voltmeters, and thermometers. Color: As Shown Material: Plastic+Steel Package Contents: 1 * Wire Piercing Probe Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.