File Type: This grounding plug is adapted to European type E/F electrical sockets. ESD Socket: It has a built-in 1MB resistor and three 10mm-Press button inputs. Easy to Use: This ESD plug is very easy to use: connect your anti-static wrist strap or mat to the plug and plug the grounding prong into a grounded outlet. Simple Design: The plug has a simple yet effective design. It plugs and unplugs easily. Multiple applications: Use this ESD plug in combination with an anti-static wrist strap or grounding wire and an anti-static soldering mat when working with electronic devices such as printed circuit boards. This will create an ESD-safe working environment.