High quality adjustable anti static wrist strap with a 12ft coil cord design. They provide the performance and reliability of a metal band with the comfort of cloth. The blue knitted material has a soft outer area and a 5/8‚ conductive area on the inside. Unlike many others which have 3-5 rows of conductive thread, these have a 5/8‚ area of solid conductive material, the largest conductive area on the market.