The tube door for Jeep is specially designed for tough terrains. 2-inch diameter steel tubes perfectly fit the door openings and body contours, can withstand impacts and pressure, there is almost no noise to be heard while driving. A larger mirror than the original size provides a wider field of view. Pre-process the door with e-coating to prevent rust. No matter what color you sprayed for the door, it has basically been treated with anti-rust.