1.Test probe: The white "cap" Please note the white part is not a cap for the needle. Actually it used for testing easily and protecting you, it has a V-shaped groove, which can also help you fix and aim the wire when you are testing the wire, so it should be flexible. 2.Puncture Wire-Piercing Test Clip: The wire piercing test clip replacement is designed to test circuits, perfect for troubleshooting car's electrical system. 3.Alligator clip can grip the accessory firmly, clamp strong and has a very bull spring. the open maximum is 23mm. 4.This kit includes high-quality digital electrical test probes, durable alligator clips, and a puncture wire-piercing test clip, designed for enhanced accuracy and reliable performance in electrical testing. 5.Apply to: Excellent back probe kit can not only be used for car, automotive, vehicle electrical testing, diagnostics, irreplaceable troubleshooting, but also can be used in physics laboratories, schools, homes and industries. Can be Used with your multimeter to back probe harness connectors, and will not damage connectors or wires when used correctly. Due to different batches, there may be differences in product appearance and printed text, which will not affect use Colour:Photo Color Material:plastic Package Contents: 1set x Multimeter Test Leads 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.