Self-adhesive fabric for use as a reinforcement over hairline cracks on smooth interior walls and ceilings. Stronger fiberglass mesh fabric reinforces old plaster walls against recurring spider-web, or alligator cracking. Also reinforces cinder block walls and paneling. Compatible with most plaster, drywall, spackling, and stucco materials. Saves labor of tearing out old plaster, inserting new extension jambs on doors and windows. Requires only thin finish coat of drywall or plaster compound. 36" x 75'.