Made from 16oz. copper. The Gutter Shingle™ keeps leaves, pine needles, and other small debris out of 5" and 6" K Style copper gutters. Will handle the heaviest of rainfall. The low profile design simply slides under the shingles and hooks to the front edge of the gutter. (Some installations may vary) Easy to install 3 foot sections. Actual size is 7½"(W) x 36"<(L).