Phillips' gripSTIK MAX-Flex Vinyl Bullnose Archway Corner Bead features a straight-cut design for minimal fill-in. Flanges feature many perforations, deeply knurled mud anchors, and the entire product is specially features a straight-cut design for minimal fill-in. Flanges feature many perforations, deeply knurled mud anchors, and the entire product is specially textured which all greatly enhance paint and mud adhesion.