Angle Master by Trim-Tex is a 3.25" wide flexible trim engineered to fit any angled corner. Angle Master is made up of a paperless vinyl material that won’t mold and holds its shape better for a superior finish. No waves, no blisters, no fuzz. Angle Master features our patented Mud Lock Technology, which consists of microscopic hooks that increase the total surface area of the trim for the strongest possible bond to the drywall. Simply press Angle Master into place, clean excess compound and let dry before applying a skim coat and final sanding.