Strong Magnets: Harnessing the strength of Magnetic , the stud finder precisely detects screw and nail heads within the wall. Once located, it securely adheres to the wall, precisely indicating the exact position of studs Compatible with All Drywall Constructions: Whether you're in a newly constructed home or an older residence, the stud finder is your essential tool for detecting wood or metal studs concealed behind drywall The Simplest Stud Finder: Tailored for installers demanding swift, reliable results without risking wall damage. No false readings, no calibration needed Excludes Lath & Plaster Walls: Note that our magnetic stud finder is not intended for use on lath and plaster walls Ergonomic Excellence: Crafted with user comfort in mind, the magnetic stud finders for walls ensures an ergonomic grip for a seamless experience. Its plastic construction safeguards your walls, leaving no marks or scratches, Manufacturer: PokFhgur