KFI Soft Shackle Constructed with 12-strand Uhmwpe synthetic rope, designed to endure the harshest conditions.. Features: 13 black sheath protects rope from cuts, nicks and other abrasives 5-1/2 opening is large enough to accommodate a variety of recovery points Tensile strength (lbs.): 3/8 - 33,000 7/16 - 44,000