Bihler's 18 Ft. ShockStrap ratchet safety strap has an industry leading 2 year warranty and a breaking strength of over 4600 lbs. The ratchet safety strap is built with a commercial grade ratchet, 2 In. black polyester webbing, integrated soft ties, double steel hooks, and Bihler's unique flexible ShockStraps. We incorporated a safety strap on one side of the ShockStrap for two very important reasons: first, if a catastrophic accident happened and the ShockStrap were to break, the safety strap would keep the tie down tight and your load secure; second, the safety strap also acts as a limiter so you won’t over-tighten or put undue stress on your load.