Can be used as a STARTER TRAC® at the base of a wall or an EIFS casing bead around window and door openings. Face return flange is 1" (25 mm) with striations which provide a strong physical bond for the base coat and perforations for bonding the base to the substrate. Ideal for use where a finished edge is exposed. 3" (76 mm) Wide nailing flange also has striations for extra bonding.