Interior corner beads are the most easily forgotten aspect of a drywall job. Designed for internal use plaster uses, manufactured from quality galvanized steel sheet, perforated mesh. Solid flanges are preferable. Corner bead are adapt to framing irregularities and to match appropriate screed heights. 90º and 135º Internal corner beads are designed to give you perfectly straight, sharp inside corners every time. Use Inside corner for finishing wall niches quickly and easily. 90º and 135º Internal corner beads are self aligning and is perfect wherever crooked framing is a problem or when drywall doesn’t meet perfectly in the corner