Extang introduces the industry’s first powerful UV protectant specifically formulated for vinyl truck bed covers. Beautifies, Cleans and Protects all in One Step. Uses the world’s most effective UV screening formula. 100% Safe for all vinyl tonneau materials regardless of manufacturer—the only cleaning solution officially approved for Extang tonnos. Tested and approved by Extang—the leader in tonneau sales in America. A must-have for harsh weather conditions. Tonno Tonic™ can also be used on any other vinyl, rubber, fiberglass, plastic, or leather surfaces. Does an outstanding job on tires and will not harm alloy wheels.