LEVELLINE's tapered profile design eliminates installation headaches and callbacks. Installing off-angles, inside and outside corners is faster and easier with LEVELLINE's tapered flex design and new applicator box. Our corner flex goes straight from the box or roll onto the wall, and requires less mud to apply and finish. LEVELLINE's superior corner trim construction (tapered plastic core, joint tape and formulated surface paper) ensures drywall corners will no split or dent. LEVELLINE can also withstand structural settling from green lumber and seismic movement without cracking or popping of the wall. LEVELLINE is ideal for outside and inside drywall corners, off-angles, tray ceilings and bay windows. Outperforms flat flex at every angle, at any corner.