1、Six Color: This electromagnetic jumper is a set of six colors by default, and you can pick your favorite color to use according to your preference. 2、Simple Operation: The operation of this electromagnetic jumper is very simple, you just need to place the two ends of the wire to the corresponding equipment, no extra operation is needed. 3、Powerful Permanent Magnets: Each end of the magnetic test leads is equipped with a tiny but powerful permanent magnet, so fast and secure connections can be made. 4、20AWG Silicone And Pure Copper Wire: This electromagnetic jumper is made of 20AWG silicone and pure copper wire, long life and easy to use. Silicone leads magnet jumper wire is soft and flexible, resistant to high and low temperature. 5、Wide Application: This electromagnetic jumper is designed for embedded terminals in thermostats, control panels, sensors, switches, and alarm panels.