Body Armor 4x4 TJ-4321 Black - Steel Tub Rails for 2004-2006 Jeep Wrangler TJ Unlimited (Pair) The tub rail from Body Armor is the first bolt on rail that is designed to protect the Jeep's tub from trail damage Designed to match the look of the Body Armor rock crawler side bars Sheet metal back plate with 1.75 inch diameter 3 millimeter thick wall tube welded on for strength Simple installation, drilling is required Dual process black textured powder coat finish for maximum corrosion resistance