Silicone: Banana plug test leads are made of soft silicone wires which are soft, non-toxic, environmentally friendly. They will not deform at low temperatures, and are resistant to high temperatures. Stackable Banana: Stackable banana Plugs on both ends are made of high quality material to ensure a long time. The main body is copper, and the shell is plastic. All of them are wear resistance and flexible enough to offer a long lasting performance. Accessories: Alligator crocodile clips are nickel plated and can carry 300V voltage and 15A current. Test fork clips are also nickel plated and can carry 60V voltage and 36A current. Automotive back probe includes 5pcs complete acupuncture probes and 10pcs replaceable needles. Function: Suitable for electrical testing with multimeters, electronic applications such as electromechanical power, electrical power, digital test quickly assemble circuits. Three kinds of accessories can perform more different electrical testings. Package include: 5PCS