The heavy material: are heavy iron hooks and its non-slip coating of pvc sturdy. strong enough to hold 45lbs or more, when properly installed. various functions: large flexible wall u-hook is a flexible mounting solution, folded chairs, ladders, pipes, garden tools, bicycles, tools, wood and electrical cords, training body and strength builders and other bulky items.hooks your best help to organize your space, like your garage, basement, shed, workshop, kitchen, bathroom. perfect for heavy objects: excellent weight equal sheet metal length design distributes the loading capacity. tang on black plate allows for quick positioning and easy assembly. no blow aluminum non-slip coating crack failure and guarantee safety and the grip. No installation: faucet wall anchors on site you marked and attach the screw using a screwdriver. Extended J-hooks will give you the flexibility to mount them on a wall to wall or yardstick. the only way is a screwdriver. with 12 screws and wall anchors in the