Self-adhesive backing, easy to stick Rigid structure for repairing holes in drywall and plaster The cover provides a smooth Remove loose drywall, debris and debris from , peel off the liner, apply patches, then apply mud/compound. Let dry, sand and degrease to fill holes or imperfections. Lightly sand and paint. size: 4 * 4 inch Material: aluminum plate + fiberglass color: silver Package Contents: 10 * Wall Repair Patch Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.