4Pcs Magnetic Stud Finder Wall Scanner, No Batteries Required Stud Finder Magnet, Easy to Use Wall Detector Scanner for All Drywall Construction, Screws, Nails & Metal Studs Through Drywall & Wood

["Powerful Magnetic Detection: Utilizing advanced magnets, this magnetic stud finder identifies hidden screws, nails, and metal studs behind drywall. It firmly attaches to the surface, clearly marking exact mounting positions for TVs and shelves","Compact & Portable Design: Lightweight and pocket-sized, this stud detector fits easily in tool bags and drawers. Its ergonomic build ensures comfortable handling for quick repairs, small renovations, and daily home improvement tasks","Battery-Free Convenience: This wall scanner requires no calibration or complicated setup. Just slide smoothly to locate studs, screws, and nails, making it great for DIY home improvement, hanging decor, and installing TV brackets","Wall-Safe & Non-Scratching: Designed for comfort, the magnet stud finder tool features an ergonomic grip and smooth wall-friendly construction that glides gently without scratching finished walls or rental interiors, ensuring a clean working experience","Versatile Drywall Compatibility: Ideal for all standard drywall types in new and older homes, the wood finder wall scanner effectively locates both wood and metal studs for safe drilling. Note: Not recommended for use on lath and plaster walls"]