... , wear-resistant, long-life material(100% EPS) . 2.Proven sling web construction. B. Endless SlingsAll YI-LIFT flat wdbbing slings meet ... , long-life material(100% EPS) .Proven sling web construction. Plies of WebPart No.Web Width(in.)VerticalChockerVertical Basket≥60°Basket45°≤≡Y60 °Basket30 ... means ED1-1 with 3 feet length. Heavy Duty Flat Web Sling ED series