Corner bead is installed using standard industry practice with drywall nails, staples, screws or clinching tool and features deeply knurled mud anchors for perfect mud adhesion.Flange width is 1-1/4". 1-1/4" drywall corner bead is available in 7', 8', 10' and 12' lenghts. Easy to install corner support can be nailed, stapled, or installed with a high tack spray adhesive.