Our 4" BlackLine heavy duty winch strap has a break strength of 24,000 lbs., and a working load limit of 6670 lbs., making it the strongest webbing available on the market . Chain is zinc-plated for extra corrosion resistance. Fits standard 4" winches. Overall Width x Length: 4" x 30 Component Information: Webbing Color: Black & Gray Webbing Break Strength: 24,000 lbs. Hooks: Chain Extension.