Webbing: Polyester; Min. 5,000 lbs. tensile strengthD-Rings: Alloy Steel; Min. 5,000 lbs. tensile strengthBuckles/Adjusters: Alloy Steel; Min. 3,375 lbs. tensile strengthTensile Strength: Min. 5,000 lbs.Max. Capacity: 425. lbs.OSHA: CRF1926.502, CFR1910.66ANSI: A10.32-2004, Z359.1-2007, Z359.12-2009