3" x 25', Roof Repair, Self-Stick Instant Waterproof Repair & Flashing, Aluminum Surface, Super Reinforced, Just Press In Place For A Permanent Repair, 5 Puncture Resistant Layers, 10 Year Material Warranty, Use On Metal & Flat Roofs / RV & Mobile Homes / Trucks & Trailers / Gutters & Flashings / Skylights.