Legend Roofing Products Zinc Strip Moss Preventer, 2-5/8" x 50 Feet Helps to prevent unsightly roof stains inhibits the formation of new moss, algae, lichen, fungus and mildew from forming on wood and composite shingles and flat tile roofs 99% Pure Zinc 2 5/8" Wide x 50' Roll Nails Not Included Helps to prevent those unsightly roof stains by inhibiting the formation of new moss, algae, lichen, fungus and mildew from forming on wood and composite shingles and flat tile roofs 99% Pure Zinc 2 5/8" Wide x 50' Roll Weight: 3 lbs per roll Nails Not Included