Stable and Sturdy: The foldable shelf brackets are made of high quality polished 304 stainless steel and the surface is brushed to prevent scratches, corrosion and tarnishing. It will not harm human health. The triangular shape is the most durable construction. more stable in wall brackets. Easy to install: Comes with mounting accessories, premium stainless steel screws and premium anchors, you can install by yourself. They can be mounted on any wall type without damaging the wall. Flexible design: Quick release hinges lock at 90 degrees. When you want to collapse the table just to press the release arm, the perfect performance to save space and keep your room organized and tidy. Strong load-bearing capacity: The folding wall shelf uses bars of thickened and widened bracket to improve durability and hardness, and a stable triangular structure, the installation can be more solid and stable, can load up to 60 kg. Wide Applications: These sturdy folding brackets are ideal for many DIY jobs. Ideal for shops, workshops, boats, mobile homes, backyards, caravans, bedrooms, kitchens, balconies, bathrooms etc. They can also be used for book shelves, kitchen shelves and exhibition stands.