Fast Edge® Paper features a sharp nose with no mud bump and tapered legs laminated with a high quality paper covering to significantly reduce mud usage and drastically speed up installation time. The nose also acts as a hinge to accommodate framing variances. With no holes, Fast EdgeⓇ Paper cuts down installation and finishing time significantly.The laminated paper covering alongside the patented mud locks keep the corner held firmly in place without the need of staples or adhesives.
https://www.trim-tex.com/products/overview/corner-beads/fast-edge/fast-edge-paper