Audits are conducted every year by an independent third-party to ensure manufacturer compliance with the set standards. Nylon Sling, Endless Type 5, One Ply, 4 in Web Width, 20 ft Length, 11,500 lb Vertical Capacity Our slings are there to solve your hoisting, lifting and towing problems.•AMERICAN MADE RIGGING – Hanes Supply, Inc.•• Although highly resistant to alkalies, they should not be used in acidic conditions.