Samson Rope Technologies 6890404 5/8" x 3' - 5' Tenex Whoopie SlingSamson Rope Technologies 6890404 5 8" x 3' 5' Tenex Whoopie Sling Samson 5 8" x 3' 5' Whoopie Sling 6890404. Whoopie Slings are adjustable lifting slings that have a permanent eye at one end and an adjustable eye at the other end to accommodate a wide range of lifting requirements. The adjustment allows snug lifting control and minimizes the number of fixed length slings required. The sling is a braided, nontorquing polyester rope with Samthane