Use to achieve durable, straight and crisps, clean 90-degree outside finished drywall corners. Hot-dipped galvanized coating offers superior corrosion protection. Strong metal reinforcement for drywall corners. Exposed nose of the bead resists impact and forms a screed for finishing. For humid, moisture-prone conditions and high-traffic areas subject to more than normal abuse. Nail, staple or clinch into place. Size 1-1/4" x 1-1/4".