Pair of CrazY Improved Soft Shackles Dyneema Samson Amsteelblue 7/64 ultralight cord with 1500b strength Hand made in the USA, specially designed by sailors to not bind like regular soft shackles For quick changing of sails for racers or for emergency rigging, this shackle can't be beat 4 inch diameter, stronger that steel cable Multi-purpose, from hanging hammocks to sailing the roughest Tazmanian sea!