NT Slings LLC’s Arborist Lifting Slings is a knotless rigging system designed for large crane removals. It is intended to provide more efficient rigging with less effort while helping mitigate shock loads. The Arborist Lifting Slings system consists of three legs of Samson Stable Braid rope with adjustable rigging hooks and uses endless loops for chokers. The sling safe-working-load (SWL) rating is 12,000 pounds, with all three legs working together – 4,000 pounds per leg. The hooks are rated for 5,700 pounds SWL. The 7/8-inch master-link sub assembly is rated at 15,000 pounds SWL. There are three hammerlocks, each rated at 5,700 pounds, and one 3/8-inch hammerlock rated at 8,700 pounds. When using the Arborist Lifting Slings, 4,000 pounds is the SWL. It is not intended for heavier loads, such as the trunks of large trees. (ntslings.com)