The DEI Versa-Shield Starter Heat Shields are designed to protect starters from potential failure caused by under hood heat soak conditions. Constructed using an aluminized heat reflective material backed with a hi-temp rated glass fiber insulation barrier, Versa-Shield is capable of reflecting radiant heat up to 2000 Degrees. Now available in two sizes, simply wrap desired component with Versa-Shield and trim excess material. The edges attach to itself using a hook and loop edge closure design. In most cases there is no need to remove component when installing Versa-Shield.