Set includes: You will receive 12 crocodile clips in 6 different colors. Black 2PCS, white 2PCS, yellow x 2PCS, green x 2PCS, red x 2PCS, blue x 2PCS. The length is 35mm/1.38 inches. This type of jumper with crocodile clip can be temporarily used for circuit connections, power testing probes, and jumper testing, similar to crocodile moon, so it is named crocodile clip (electronic spring clip). Detachable Design : The test jumper adopts a detachable design. The usage method is very simple and convenient. Connecting from two terminals is very fast, for example, a power test probe, which can be frequently used for circuit electrical testing. In addition, crocodile clip appliances are widely used in motor testing, electrical testing, digital product and power connection testing. Safe and Durable : The jumper is made of PVC material, which is safe, reliable, and has strong elasticity. Test the surface coating of lead, which is glossy. It will not cause wire crossing or short circuit.Scalable and Secure: When testing the performance of electronic devices, the test leads are expandable and can be tightly and conveniently connected to battery power. The PVC plastic cover is insulated, which to some extent protects safety. But please note that the clamp terminals are metal and should not be used above the rated voltage.Widely used: The electrical test leads of these crocodile clips are very suitable for circuit connection testing, troubleshooting, maintenance equipment, and electronic development, and can be temporarily connected to nodes that do not require welding. Easy to use. Widely used in laboratories and electrical testing, such as experiments, circuit boards, prototype design, troubleshooting, etc. Can be used in laboratories, shops, schools, homes, and industries.