【Easy Installation】Simply align the corner brace for wooden with the right angle you want to reinforce, Insert the screws through the countersunk holes and tighten them with a screwdriver or drill. 25Pcs Stainless Steel Angle Brackets, 3”x3” L Bracket Corner Brace for Wood, Heavy Duty Corner Brackets 90 Degree Joint Right Shelf Bracket for Bed Furniture Cabinets, 3MM Solid Shelf Support Hardware.