Features: *Five colors, four of each color. help you distinguish from another visual. *The jumper wire is made of PVC material, safe and reliable, strong elastic force. Test lead surface plating, glossy. Does not cause wire crossing or a short circuit. *Alligator clips electrical are made of nickel-plated steel with a strong spring and a strong connection to ensure good conduction. *Widely used in laboratory, electrical testing, such as experiments, circuit boards, prototyping, troubleshooting, etc. It can be used in laboratories, shops, schools, homes and industries. Specifications: Length: 16inch/400mm Color: as picture shown Package Included: 20pcs Test Leads Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. If you have any questions, please feel free to contact us, we will solve it for you. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. 20Pcs Alligator Clips Electrical 16inch Test Leads with Alligator Clips Testing.