HOW TO CHOOSE THE SIZE: It is recommended to match the depth of the wall with the length of the support to ensure maximum load capacity. Extending the depth of the wall increases the torque on the support arm. As the torque increases, the load capacity decreases (lever principle). Models include 200 mm folding shelf supports with a maximum load capacity of 330 lbs / 150 kg, you can increase the number of brackets between the span. SPACE SAVING: The folding bracket only requires a mounting surface and takes up very little space. You can use them to extend the workbench in the garage, laundry room, kitchen, garage, boat, reception, garden, RV, BBQ, trailer, bedroom, balcony, bathroom, etc. Fold it up when not in use to save the most space. Easy to clean. Installation: Even if you are not good at DIY, it is easy to install. The package includes suitable mounting accessories, high-quality stainless steel screws; and expansion tubes. You just need to make sure that the two brackets are parallel to each other and perpendicular to the wall. ROBUST AND DURABLE: Made of high-quality stainless steel with good heat resistance, corrosion, and rust. No coating, no painting, easy to clean. The wire drawing process can prevent daily scratches and keep it shiny as new.