The world's #1 flex drywall corner trim delivers perfect straight lines for challenging off-angles and long spans. Helps straighten poor framing and hides large gaps in drywall corners while withstanding settling, shrinking lumber, seismic movements and temperature variations. FEATURES - 4.5" Surface - Patented bonded face paper, plastic, and joint tape construction - Provides a structural corner for inside and outside applications - Keeps drywall corners perfectly straight, even on long runs - Product strength allows for the spanning of large gaps in framing or drywall - Finished face paper is ready for paint or texture, minimal finishing required - Simply the best product for any drywall corner solution