SuperPro's coil spring insulators and spacers offer supreme durability and consistent performance. Without the degradation over time that plagues rubber insulators SuperPro’s bespoke polyurethane compounds offer proper spring location and retention for the life of your vehicle. No sag, no softening, just predictable and permanent suspension solutions. SuperPro's 2" spring spacer lift is not only a budget friendly option to lift your JK, it allows you to keep the OEM ride quality and costly components in place - and is easily removable should you return the Jeep to stock or desire a more comprehensive upgrade down the road.