TheStudBuddy Pro delivers all the simplicity of the original StudBuddy-with the added features customers ask for most. It includes built-in plumb and horizontal bubble levels for quick alignment, a comfortable soft-grip handle, smooth-gliding felt pads, and easy-read inch/centimeter rulers. The StudBuddy continues to support Hire Heroes USA and the National Breast Cancer Coalition. Still the world's simplest stud finder, now with more capability. The StudBuddy Pro uses powerful neodymium magnets to locate the screws or nails securing drywall to wood or metal studs. It needs no batteries, has no moving parts, and is guaranteed to work on all drywall applications. Just slide it along the wall-when it finds a fastener, it sticks, clearly marking the stud location. Perfect for hanging shelves, cabinets, TVs, artwork, and more, the StudBuddy Pro makes every project faster, easier, and more accurate.