The Thule K-Summit Snow Chains are easy to use snow chains that secure directly to the lug nut, without touching the wheel itself. The K-Summit Snow Chains feature an attachment system that attaches directly to the lug nut or lug bolt. The K-Summit Snow Chains utilize tensioning springs to provide perfect fitment, and a ratchet system acts as a force multiplier for super easy attachment. The chain on the K-Summit Snow Chains feature welded bars to provide better grip on ice and hard packed snow.