The Poison Spyder Trail Cage kit comes disassembled and requires welding to install. The Lower A-Pillar is designed to provide a strong foundation for the forward section of the cage while not intruding into the dash or compromising legroom. The Trail Cage is secured at the windshield, at the front gusseted A-Pillar, at factory mounts on the door jamb and to the floor through the forward drain hole. This provides solid strength from the top of the windshield to the floor. The Lower A-Pillars and gussets are CNC laser cut and precision brake-formed for quality and fit. Tubular kit components are constructed from 1.75" .120 wall DOM structural tubing. All tubular components are CNC-bent and laser-notched for a precise fit, and laser-marked with reference numbers for easy identification and installation.