Stanley Magnetic Stud Finder is a reliable tool designed to help you easily locate steel nails and screws that secure drywall to the studs behind it. Its compact size, measuring just 1-3/8" by 1-3/8" by 1-1/4", makes it convenient to handle and use in tight spaces. The base of the unit features a notched edge that allows you to mark the exact location of the stud, ensuring precise and efficient work. This magnetic stud finder is an essential addition to any toolbox for both professional contractors and DIY enthusiasts looking to complete projects with accuracy and ease. Model Number: 47-400