If synthetic slings are part of your daily work routine, it’s probably a good idea to use a hook designed specifically for them. Consider the All-Grip Round Sling Hook. Extremely easy to use, these hooks are color coded to match All-Grip sling strengths so you can work safely knowing the size and working load limit match. Made for round slings Easy to use Color-coded and rated to the equivalent round sling WLL: 2,600 lbs.-13,200 lbs.