The metal electrostatic ring is used to release the static electricity of the human body. It is composed of an elastic band, snap fastener, spring cord. The electrostatic ring does not need grounding connection to remove static electricity. It is flexible and convenient. Those who are suitable for mobility and who have low sensitivity to electrostatic discharge should be worn. The operator has no regional restrictions and can be freely moved. Anti-static wrist strap must be close to the skin, not across the clothes.