High quality adjustable dual anti-static wrist strap sets are available in a 6' or 12' standard 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.