High-Quality PVC Insulation: Crafted from superior PVC, our wire piercing probes are designed to resist both high and low temperatures. The non-slip grip ensures comfort and reliability, allowing for precise measurements without the hassle. Efficient Wire Protection: Measuring 11.7cm x 1.75cm, our wire piercing clips securely pierce and clamp cables up to 4mm in diameter. Compatibility with 4mm Banana Plugs: Our test leads are perfectly compatible with 4mm banana plugs. Each lead is 100cm long, allowing for multiple connections in a piggyback style, enhancing the versatility and ease of use in various testing scenarios. Comprehensive Back Probe Kit: This kit includes 2 male-to-male 4mm banana plug multimeter test leads and 2 wire piercing probes in red and black. Versatile Application: Ideal for hands-free, secure connections, our probes support weak current testing up to 36V. Color:As Shown Material:plastic Package Contents: 1 * Electrical and automotive wiring test wire tester set 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.