The ESD mat helps prevent damage to electronic circuits from an electrostatic discharge. The anti static desk mat covers an area of 23.6x47.2in and has a 6.6ft long removable coiled grounding wire - The electrical grounding mat complies with ANSI/ESD S4.1 - Use the anti static mat as a portable work surface or roll into a tube for storage - The ESD table mat can be used for computer repair and assembly, manufacturing, in server rooms, clean rooms, or in other areas that need ESD protection