1. HEAVY-DUTY STRUCTURE: Triple-cornered shelf bracket is made of Aluminum. Heavy-duty construction creates a sturdy piece, stronger than steel ones. If you want to use them for more load you could use more those brackets for floating shelves. L shape structure of stable right angle, easy to make level and get rid of wobbles. 2. MULTIFUNCTION USE:deep shelves. The utility shelf brackets usually were used as a bookshelf, exhibition stand, external wall brackets, garden shelves in the garages, basements, storage rooms, stores, offices, and factories. The shelf bracket with a heavy-duty design is perfect for DIY open shelving adds a nice look for your house. 3. SPACE SAVING: The floating shelf bracket helps create more space of wall for storage or display in any room. Suitable for small places and make it tidier. 4. Weather Proof: Yes, Indoor or outdoor, bathrooms living rooms kitchens bed rooms Shelf Wall Brackets,Apply this on a variety of wood shelving included Kitchen shelf, bathroom shelf, bedroom shelf, bookshelf, and tool shelf. 5. The Perfect DIY Shelf: Our floating shelf holder comes with 2 brackets for wall-mounted shelves. Make the most of space and style. Perfect for kitchens, bathrooms, bedrooms, offices, etc. colour: black Material: aluminum Size: M: 15x20cm Package Contents: 4 x Shelf Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.