Bjz grounding wriststrap with 4mm stud bjz c 189 145 4 0 p this grounding wrist strap with 4mm stud from bjz has been designed with comfort in mind thanks to the adjustable elastic strap which protects the skin from metal up to the contacting connection meaning there are no allergic reactions p p manufactured to a high standard the non slip material uses woven conductive fibres and features an electrically conductive plastic plate at the buckle base p p align left p bjz c 189 145