It can be used to discharge the electrostatic on objects around you in daily life ( door handles, office equipment, house hardware, etc). As the form of a keychain, it is convenient to use and easy to carry. How to use this device: 1.hold the keychain end of the device. 2.touch the tip to the object with static electricity. It usually takes as quick as 0.2-1 seconds to discharge the electrostatic. In the dark environment, you can see the LED light flash during static discharging. Under normal circumstances, the flash is extremely weak, usually invisible. Static electricity will continue to accumulate in daily activities, so it is necessary to use this anti-static keychain many times. It is to discharge static electricity every time before touching a metal part or other conductors. Proper use of this anti-static keychain will help you get rid of static shock in the dry winter., Weight: 0.086 pounds, Manufacturer: Sourcingmap