Our straps are TSO-172 certified and FAA approved with a built in 1.30 overdesign factor, exceeding IATA recommendations. TFI is one of only a handful of companies that hold TSO certification for these vital cargo accessories. Patented over-centre buckle is designed to prevent any slippage no matter how rough the transportation conditions. Our up to 5,000 webbing denier far outstrips what is generally found on the tie-down strap market today.