Simply line the underside of your fuel tank with the self-adhesive Reflect-A-Cool or Reflect-A-GOLD material and trim to shape. The DEI Reflect-A-Cool material is made up of a aluminized reflective foil backed with a base layer of glass fiber. It’s rated to withstand continuous temperatures up to 400°F degrees and can reduce fuel temps by up to 30%. Installation is easy, the material can be cut with scissors and lays down well to cover irregular shapes. This kit can be used with all tanks including metal, plastic and fiberglass. For those running in extreme conditions or running air cooled engines, we recommend our up-spec Reflect-A-GOLD material. The heat rating doubles while the thickness and weight of the material remains the same. Each kit includes: – 1: 24″ x 24″ sheet of reflective material – 1: 1.5″ x 1.5″ roll of reflective tape. Key Features: – Reflects Radiant Heat – Reduce Fuel Temperature – Lower Stress on Fuel Pump – Reflect-A-Cool withstands temperatures up to 400°F – Reflect-A-Gold withstands temperatures up to 850°F – Includes reflective tape to help cover seams and irregular shapes.