Feature:1. Resistant To Friction: Ring with non allergic stainless steel ring outer insulating layer, resistant to friction2. Adjust The Size For Easy Wearing: You can open the case of the wrist strap buckle and adjust the size for easy wearing3. Long Life And No Dust: Easy to use and flexible, long life and no dust, can be used in more than 100 clean room environments4. Very Stable: Bracelet resistance is less than 103, wristband impedance coefficient is less than 50, very stable5. For Factory Workshop: Electrostatic discharge ESD wrist strap is suitable for factory workshop, electronic maintenance, without dust workshopSpecification:Item Type: Cordless ESD WristbandProduct Material: PU + stainless steelProduct Size: Length: Approx. 19cm / 7.5in, Width: Approx. 17mm / 0.67inBracelet Resistance: 103Impedance Coefficient of Wrist Strap: <50Use Scenarios: Factory workshop, electronic maintenance, without dust workshop.Package List:1 x Cordless ESD Wristband