These coat hooks are made from Aluminum alloy which is sturdy enough to withstand heavy items, not easy to break and can resist rust and erosion, the screws are made of iron, it can easily hold up to 40 lbs of weight.These coat hooks can be folded. When you use it, open it. When you do n’t use it, you fold it, which perfectly saves room space.The clothes hook dimension is 70 x 77 mm/2.75 x 3 inches; Screws are 30 mm long and 8 mm in screw head diameter; Hollow wall anchors are 30 mm long, are easy for installation.