The fast, easy way to find studs. With a simple and intuitive design, the Kreg Magnetic Stud Finder with -Mark is a pocket-friendly way to hit the mark every time. Featuring strong rare earth magnets, the Magnetic Stud Finder with -Mark offers reliable indication on wood and metal studs. -Mark line, hi-viz bubble level, and precision marking notch make it easy toanchor cabinets, shelves, and more without the need to mark on the wall. And because the Magnetic Stud Finder with -Mark hangs hands-free on the wall, you can work confidently and quickly without the worry of inaccurate results or having to use just one hand. Batteries included. Warning: This product can expose you to chemicals including Acrylonitrile and other chemicals, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov. -