A backup for the moment something lets go. When you run a double winch-ring setup with the line passing through twice, a safety catch sling is cheap insurance. It is there to catch the line if a shackle or the winch line itself fails under load, keeping loose gear from becoming a projectile. Rigging is simple: run a double loop soft shackle through the eyes of the sling, then loop the sling around a solid axle or part of the frame. Now if the primary connection fails, the sling contains it. Sizes Diameter Length Pair with 5/16" 10' 5/16" winch line / SXS & mid-size setups 7/16" 10' 7/16" winch line / full-size trucks Match the sling diameter to your winch line diameter. Both sizes are HMPE fiber and 10' long. Made in the USA. Safety: A safety catch sling is a secondary containment device, not a primary recovery point, and does not replace correct rigging or knowing the ratings of every component in your system. Keep bystanders clear of the danger zone during any winch recovery.