Invisible Support, Visible Elegance: Hidden L-bracket design tucks seamlessly under surfaces, creating sleek floating shelves for kitchens, islands, and breakfast bars. No bulky hardware in sight—just clean, modern lines. Effortless Installation: The heavy duty countertop brackets is made of high strength solid carbon steel, in order to make sure that your items are placed horizontally, it is 100% 90 degree vertical, excellent design to ensure the stability of the bracket! Includes 8x80 stainless steel anchors and M6x20 self-tapping screws. Pre-drilled holes + rounded edges ensure quick, safe mounting on concrete, drywall, or studs. No professional help needed! Versatile & Space-Smart: square and beautiful practical granite countertops brackets, suitable for DIY enthusiasts or anyone who wants to decorate their space, used in kitchen, farmhouse，study, living room, bathroom, pantry, bedroom and powder room, etc.. Fits 12"-16" deep boards to maximize storage in tight spaces.