ESD Safe Antistatic Wrist Strap Band with Grounding Cord .It is an anti-static device used to prevent electrostatic discharge (ESD) by safely grounding a person who is working on sensitive electronic equipment. It is an adjustable wristband used by workers in electronic assembly plants or repair depots to protect electronic devices that can be damaged by ESD. It is manufactured with a conductive carbon interior coating for static control and protection. Dissipates Static Electricity During Electronic Repair and Maintenance. Adjustable Wristband. Molded Ends for Long Life Use.