teel JK Crusher Flares are constructed using 1.5 X .120 inch wall DOM (Drawn-Over-Mandrel) structural tubing as the outer "rub rail". This DOM tubing provides better resistance to crushing, kinking, and bending than competitors flares made with thinner wall, welded seam tubing. The foundation of the Crusher Flare is a CNC laser cut, 3/16" thick steel mounting plate, precision brake-formed to conform to the subtle curves of the JKs body panels. Mounting holes are countersunk for the use of flat-head stainless steel mounting hardware. The top plate is CNC laser cut 1/8" aluminum plate, which is hand formed around the curves of the Crusher Flare for a factory appearance that matches the JKs organic body lines better than any other aftermarket metal flare available. Exclusive Inner Brace Set Every set of Poison Spyder JK Crusher Flares comes with a set of inner braces that tie the Crusher Flare in to the sturdier, heavier-gauge steel of the JKs inner body tub structure. Competitors JK Flare products simply bolt directly to the outer layer of the JKs body sheet metal. But as any JK owner knows, the exterior sheet metal is very thin and flexible. Simply bolting a heavy duty fender directly to the exterior sheet metal without the inner bracing is a disaster waiting to happen. Regardless of how sturdy the flare is built, upon contact with rocks, trees, etc., it will simply push in and deform the flimsy sheet metal it is bolted to, possibly causing expensive and unsightly damage. The Inner Brace Set that comes with Poison Spyder Crusher Flares effectively bypasses the outer sheet metal, instead transferring those forces to the much stronger inner structure of the Jeep. That's why we've been able to demonstrate the strength of our flare attachment system by parking another Jeep on top of the Crusher Flare! These Inner Braces are CNC laser cut, brake-formed for a great fit and simple installation.