Safety Assured: The Test Hooks Clips are designed with your safety in mind. Operating at a voltage of 600V CATII, a current of 3 amperes, and a working temperature range of -40℃ to 100℃, these test hook clips are intended to provide a secure connection for your testing needs without compromising on safety precautions. User-Friendly 4mm Plug: This outstanding Test Lead Kit deals away with complex connections with its 4mm Interface that utilizes a push-in connection. This push-in connection system ensures a simplified and fast setup process, enabling you to concentrate on accuracy of testing instead of worrying about setup hassles. Superior Durability: Each test hook in our kit is crafted from high-quality nickel-plated brass and ABS. This ensures not only a sturdy construction for safe and effective testing but also a long service life, giving you the peace of mind that your tools are built to last. Practically Designed: The end of our test hook is retractable and fitted with a spring, enabling you to securely grip objects during testing. This spring-loaded feature provides the tool with a firm hold on objects, significantly reducing the chances of any unfortunate slips or disconnections during important tests. Please note:There is a slight color difference or difference in kind, it does not affect the use, please do not mind, thank you! Colour:Black & Red Material:Plastic Size:4mm Package Contents: 4 x Test Hooks Clips