Made with a custom dissipative material made exclusively for Desco Industries and not available anywhere else. Rtt: 1 x 106 to lt; 1 x 1011 ohms per ANSIESD STM11.11 Tribocharging: Less than 100 volts ESD Protective Symbol allowing people to immediately know the strap clip is ESD protective 3-12 long strap clipRust-Resistant Nickel-plated steel clip This item is made in Chino, CA