New B3X Exclusion Wedge Strips are specifically designed for use with metal roofs, and exclusively sold by WCS. They provide the same protection as the original B3X strips, but their wedge shape makes them ideal for metal roofs. As with the original strips, they cab exclude birds, bats, insects and more. The compression anchor technology, constructed of reticulated polyurethane material, allows installation without adhesives or tools. The 2-foot strips are packed 24 to a box, for a total of 48 linear feet.