Locate drywall screws and nails in studs, and use as a nail starter and for a plumb line. Ideal for the do-it-yourselfer or home improvement customer who needs to hang pictures, shelves or decorations, or anchor items to a stud. Easy to use, has no mechanical parts, and requires no batteries or calibration. The patented Stud Magnet has a Magnetic Shield which blocks the magnetism when it is not in use. Non-scratch surface is safe for all wall types. 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 & 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. Made with Neodymium (Nd-Fe-B), the most powerful magnetic material in the world Strong Magnet Grade of N35 Super holding power Encased in durable red plastic housing Good in ambient temperatures, up to 176 F Magnetism oriented through thickness Includes Magnetic ShieldsTM to block magnetic strength when not in use Good for use at home, garage, workshop or job site Use as nail starter and for a plumb line Ideal for do-it-yourselfer, home improvement and hardware supply market