Poison Spyder Crusher Corners for the JK provide ultimate protection for the vulnerable rear corners of your Jeep JK. Crusher Corners are full-corner protectors, extending from the rear tailgate, around the side, over the wheel openings and all the way to the door openings. Made of rugged 1/8" steel, JK Crusher Corners may be used with the stock JK fender flares or with Poison Spyder's JK Rear Crusher Flares for the ultimate combination of rear corner armor. Poison Spyder JK Crusher Corners are unique among aftermarket corner armor, in that they provide full coverage while conforming to the compound curves and subtle contours of the JK body lines. Competitors' full corner protectors are brake-formed from flat steel, and may require the removal of large swaths of the stock sheet metal in order to install them. Poison Spyder Crusher Corners are tool-formed to match the JK body lines in a close-fitting overlay, requiring no cutting of the body except to clearance for light provisions as needed. JK Crusher Corners come in a complete kit with stainless steel button head hardware. Drilling is required, as is installation of threaded "nut-serts" (Poison Spyder provides the nut-serts, a simple nut-sert installation tool and detailed instructions). JK Crusher Corners are shipped as bare steel.