HDE Cordless Wireless Adjustable Anti-Static ESD Electrostatic Discharge Wrist Band Strap Protect sensitive electronic components from ESD (electrostatic discharge) Current limiting resistor IMOhm .5%, Electro-scattering time 0.1sec, Rinsing resisting Inner conducting layer is made of stainless shell filaments; Easily adjustable, includes extra strap Anti-static Device Measures: 4 x 2.5 x 1cm (1.5 x 1 x .5") Strap Measures: 15cm (6") Package Contents: 1 x Anti-Static Strap