Specification Packing: 2 PCS Material: conductive yarn Length: 19.5cm (7.68in), Width: 2cm (0.79in) The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn, which is closer to the wrist and effectively discharges the static charge of the human body. It is a device that can be worn on a person's wrist to release the static charge accumulated by the person. Wearing this anti-static wrist strap can safely eliminate static electricity generated in the body within 0.1 second. When in use, the wristband must be in contact with the skin. It can be adjusted according to the size of the wrist. The user can adjust the size of the anti-static wrist strap according to the size of the wrist. It will not scratch the skin and will not shed hair on the arm. It protects sensitive electronic components from the effects of ESD (electrostatic discharge). Small size, light weight, very convenient to use, and high reliability. It is a device that can be worn on the human wrist to release the static charge accumulated by the human. Widely used in electronics, medical, photovoltaic, chemical, optoelectronic, military and other industries, suitable for production workshops, dust-free workshops, electronic maintenance and other places that require electrostatic values A good wristband for electricians or IC/PLCC workers, never connect yourself or any hardware you use to utility power or any other power source.