Poison Spyder JK 4-Door Trail Cage Kit (Bolt-Together) 11-Up "Bolt-In" installation requires no welding Made of NC bent 1.75" X .120" wall DOM tubing and CNC laser cut 3/16" plate steel Plate steel A-Pillars provide strength all the way to the floor without compromising leg room or ease of entry Interlocking tube couplers are superior to competitors' tube clamps which may weaken the steel at junctures Hardware & installation instructions included