Introduction:, ESD Heel Strap is composed of conductive rubber, adjustable magic Velcro and conductive fabric tape. The electric charge can be conducted into ESD floor via its conductive tape and rubber. It is a must in anti-static measurement. We suggest every user wear a pair on both feet to increase the connection time of strap and ground, which will reduce the harmful possibility of electro-static to users. Meanwhile, ESD heel strap must be used on the surface of ESD floor or ESD ground.