Size 20*20cm / 7.87 Inches X 7.87 Inches Approx Emerald Green ESD High Temperature Mat With ESD Grounding Cord and Antistatic Wrist Strap Anti-Static Wrist Strap: It is a wrist wear band for releasing human body electrostatic charge; anti-static mat is resistant to acid, alkali, chemical soldering flux, wear-resisting and easy to clean. Anti-Static Mat: Can be applied on desktop, wire worktable surface and so on, to prevent equipment from electrostatic damage. Grounding Wire: Used for the connection between the anti-static mat and the wrist strap, effectively discharging the static electricity generated during operation to the earth. Make sure the wrist strap is directly contact your skin, and grounding cable is connected to ground when using. Wear the anti-static wrist strap, it can safely remove static on human body within 0.1 seconds, it is a necessary and widely used anti-static equipment. All mistaken unwanted orders, ordered by mistake, did not like it, does not work will be charged a Restocking Fee of 20% please Buy Carefully