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.^ 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.