"Go Rhino Rear Door Window Bars are custom designed for your specific vehicle. Made using 16-guage steel and featuring 3’8"" thick steel bars, this product will keep your windows protected and inmates secure while in custody. Drilling is required; however, the frame includes pre-drilled holes which makes for a quick & easy installation process. A 3-year warranty is included which covers defects in materials and workmanship. | Go Rhino Rear Door Window Bars 571713"