This carabiner hook boasts industrial strength holding power. Use when hanging and storing tools, cables, signs and other heavy items up to 45 lbs. All magnets are not created equal. Neodymium magnets are a permanent type of Rare Earth Magnet, made from neodymium, iron, boron and other transition elements. Affordability and availability contribute to this strong magnet's growing popularity. These are the strongest permanent magnets on the market today. Grade N35 offers high performance at an economical price. Neodymium magnets have many uses, from a variety of industrial applications to an unlimited number of personal projects. They can be used in the manufacturing of motors, alternators, and actuators and also great for crafts, school experiments and DIY jobs. Perfect for small yet strong closures and fasteners and ideal for keeping objects secure on any ferrous metal surface. We have the right rare earth magnet in stock to get your job done. With an extensive inventory of neodymium in various shapes, sizes and grades. For practically any light, medium or heavy duty project, where super strong pull force is required.