Round Sling 1) 100% high tenacity polyester of out sleeve and inner core; 2) With two ply woven heavy duty out sleeve; 3) Low Round sling is a continue loop made from 100% polyester yarn, encased in a tubular sleeve of polyester fabric. It is widely used even when awkwardly shaped or fragile loads are being lifted. The sleeve is so constructed that it can protect and consolidate the internal rows of yarn filament and keep them in a parallel formation at all times. It’s featured as soft and light for easy rigging and conforms to the shape of load. To the cost, it’s an effective choice in high capacity lifting or pulling application.