ShiZhiLi Rope Net Belt Co.Ltd manufacture Duplex Webbing Sling,Duplex Webbing Lifting Sling Duplex Webbing Sling manufactured from double layers of webbing,Duplex Webbing Sling are ideal for lifting heavy goods. Flat by design with an eyelet at each end and are supplied with certification. http://www.lftdzd.com/webbing-sling/duplex-webbing-sling.html