It may come in a long strip with a small, 90° metal band down the center to form the corner. Or it may come as a roll of paper tape with two flat metal strips attached along the center. The tape-type bead requires the drywall sheets come together perfect

Featuring a paper-faced surface, the 10 ft. Paper-Faced Vinyl Super Wide Outside Corner Bead offers durability and lasting performance. The dimpled design lends improved mud adhesion for outdoor use.

90° and Offset Beadex Paper Faced Metal Designed to form a true inside (90°) corner. For use with any thickness of wallboard. Inside Corner Inside Corner, Tape-On Trim Standard lengths: 8', 9', 10'.