3" X 40' Winch Strap with Chain Extension Blue Gregerson Greenhouse This sling measures 6' length This sling measures 6' length bearing point to bearing point and features sling hook and sling hook end fittings A hot dipped galvanized finish helps protect the alloy quenched and tempered Grade 8 steel from corrosion design factor is the "ratio of the breaking strength to the working load limit" and should be 3:1 for these tie down straps Trailer winch straps are one of the most common pieces of tie down equipment for flatbeds and other trailers this 3" configuration offers the same working load limit as a standard 4" winch strap with less bulk