Video was produced by Avtel Media. 1-888-522-8835 - www.avtelmedia.com How to repair drywall corners. Boss Corner Guards are the solution for all of your wall protection, wall guard, aluminum corner guard and industrial corner protector needs. Available in these metals: Stainless Steel, Aluminum, Checker Plate, Industrial Steel. Custom orders available. This video will share how to choose the right corner guards for your wall protection needs, explain our special WallGrip Edge, a special wing, and let you know how you can order.