Integra Racing Coilover spring rubbers add another adjustment to tweak your setup for ultimate performance. Integra spring rubbers are made from resilient Polyurethane or K-Prene urethane and are even available with molded handles for fast removal. Rubbers are Single or double grooved and available in multiple durometers for a perfect fit to your setup, so you can easily dial in your machine. Integra has even color-coded their spring rubbers so you can easily select your durometer of choice. Change your setup without changing your springs with Integra Coilover spring rubbers.