Check the listing for details. 12PK 1"x3ft Web Sling Lift Tow Strap Twisted Eye Heavy Duty BS 16000lbs SF 5:1. Condition: New. Listed at 111.30 USD. Polyester webbing: Precision lifting slings are made with the industry standard Polyester webbing. Polyester allows for minimal stretch while under load and excellent wear properties. WSTDA Standard 5:1 Safety Factor: Break strenath=5 x Work load limit.It provides a massive safety margin to ensure reliability and security in high-risk scenarios. Attachment methods: Each lifting sling will carry different capacities depending upon how it is being used; Vertical, Choker, Basket. Always confirm the capacity of your sling is suitable for your attachment method. Multiple width and length: Webbing slings come in different widths and lengths to accommodate various load sizes and shapes. The width of the sling affects its load-bearing capacity, with wider slings typically capable of handling heavier loads.