[(STURDY & DURABLE)] The folding shelf bracket is made of premium polished 304 stainless steel with strong smooth surface & srecise sction.build to resist daily scratches, corrosion and tarnishing. [(SPACE SAVING)] Collapsible shelf brackets lock at 90 degrees. Excellent performance suitable for limited spaces when you want a work surface that can be folded down and out of the way. [(BRACKET SPEC)] 11.8 * 6.3 inch; Max load: 154 lb/70 kg. Triangle shape is the sturdiest construction in wall brackets currently. Enough to be used as bookshelf, kitchen shelf, exhibition stand, garden shelf, external wall brackets etc. [(WIDELY USED)] Folding bracket could be mounted on the wall for many home DIY jobs. Ideal for stores, workshops, boats, motorhome, backyard, trailer, room, kitchen, balcony, bathroom, etc. [(EASY TO INSTALL)] The folding hinge brackets are easy to mount just make sure they are straight on the studs when you do mount them. so you could build a folding shelf bracket or small wall mounted fold down desk for your home or garage. It can be installed on any kind of wall without damaging the wall.