What we have here are the new TNT Guardian Rock Sliders for the Jeep JK 4 Door (2 door soon to follow). These sliders are built with extreme off road conditions in mind. High clearance, robust construction, maximum crush resistance and supreme rocker/door protection are just a few of the key features that come with the Guardian Sliders. The innovative "Tall" rocker cover option is an industry first and gives Jeepers additional tub armor for those tight off camber rock trails, standard height rocker covers are available as well. The rocker cover's aluminum construction really distributes impacts well and keeps the Jeep's body intact. The outer slider portion is built from 1-3/4" x 0.120 wall tubing sandwiched by 2 steel plates and welded. The lower plate gives you a "mini boatside" and excellent sliding capability over obstacles. The Guardian Rock Sliders are the first of its kind and a true game changer in the world of durable Jeep body armor. As always, built in the USA!