The OX BLOCK™ with adjustable sling and carabiner- 50061A-4 handline assembly, as a whole, can be used for hurtman rescue. However, DO NOT USE P/N 2406 handline hook [MBS 500lbs] or handline snap [MBS 750 lbs] for human support. All components used for rescue must have a 5000 lb. rating, configured to accept human support.