STURDY AND DURABLE: Made of high quality stainless steel with brushed surface, smooth machined edges, sturdy triangular structure and 3mm thick support rods, sturdy and wear-resistant. Use weight up to 440 lbs / 180 kg, not easy to rust or break. FLOATING SHELF BRACKETS: The shelf brackets are L-shaped brackets, welded with high-strength stainless steel, no need to worry about welded fittings falling off. Each corner bracket has 3 round holes, 18mm, for hanging small hooks or rods, which helps to store and organize, space-saving and practical. EASY TO INSTALL: We provide mounting accessories, extension tubes and long screws for fixing the longer arm to the wall and short screws for fixing the other arm to the board. SUITABLE FOR MULTIPLE DIY USES: Our shelf brackets are sturdy, durable and beautiful. Can meet your various home improvement ideas, such as bookshelves, kitchen shelves, display shelves, garden shelves, garage benches, exterior wall brackets and more storage shelf items. Also suitable for office, store, hotel or commercial use Shelf Brackets Packing List: 2 Shelf Brackets per package, Size - 25.4 cm x 17.7 cm with 4 S hooks, 4 plastic anchors, 4 (4 * 16 mm) self-tapping screws and 4 (6 * 35 mm) self-tapping screws. Our heavy duty bracket comes with 24 months warranty, if you are not satisfied within 30 days, we can offer you a refund or replacement service and 24 hours manual service online.