Poison Spyder Rear Inner Fenders are the best looking, best functioning aftermarket rear inner fenders for your Jeep Wrangler JK. Poison Spyder JK Rear Inner Fenders dress up the look of your front wheel wells with beautiful CNC laser cut, bead-rolled and brake-formed aluminum panels with inserts that may be painted a contrasting color. The main panels are made of 16 gauge 5052 aluminum. The CNC bead-rolled features look great and give the product a distinctive motorsports flare, but the beads actually help stiffen the product for further strength. These look great with Poison Spyder Crusher Flares, but they're a great addition to any Jeep JK Wrangler, whether it still has the stock flares, aftermarket plastic flares or other manufacturers' metal flares.