Carbon Fiber Rail Guards offer the best protection possible for rails. These are machined from a solid 1.5mm thick sheet of carbon fiber to offer superior durability. This is thick solid carbon fiber (no fake garbage here)! The carbon fiber is adhered to the rails with a supplied 3m adhesive tape. Unfortunately we are still waiting for a die to be made so we can supply the adhesive tape already cut to shape. So for now we supply an exacto knife to cut the adhesive to shape after the tape is adhered to the backside of the carbon fiber rail guards.