[Strong Magnetic Force] The world's simplest stud finder. Made of high quality, materials, this stud locator works with all drywall construction by using powerful magnets to locate the screws in the studs. [For all Construction] The Stud Locator works best as a stud finder on drywall and wood. Whether you have a or an older residence, it is a must-have tool for detecting wood or metal studs hidden behind drywall. Special Note:our magnetic Sud Locator is not intended for use no lath and plaster walls. [Easy to Use] and no moving parts to worry about, no false readings, no calibration Made for installers who want fast, reliable results without damaging the wall. [Fast and Effective] Drywall is hung on wood or metal studs using screws or nails. The stud finder uses super-strong magnets to accurately detect the heads of screws and nails inside the wall. Once found, the stud finder level "sticks" to the wall, precisely indicating the exact position of studs. [Widely Used] Our stud finder is a versatile and reliable tool that can make any installation job more efficient and effective. Help you avoid danger when hanging and installing TV mounts photo frames, wall cabinets shelves, bathroom handles and other decorations., Weight: 0.07275254646 pounds, Manufacturer: Duanthry