ESD Cleanroom Wrist Straps Four colors for option. 10, 16, 20 silver strands available color:yellow;black;red and green Anti static Wrist Strap absorbs static charges from personnel to protect electronic devices sensitive to static discharge.Specification for POSH-04:1. Four colors for option.2.color:yellow;black;red and green3. 10, 16, 20 silver strands available.