1. Strong Magnetic Force: The world's simplest stud finder. , this studball has the magnetic with 27 pounds of pull. 2. Fast and Effective: Detects quickly and accurately screws or in wood walls or behind drywall. And this stud finder can find 40 or more steel studs on a drywall with the thickness of 5/8inch in less than a . 3. Precise Positioning: No need to make any marks or read data, the magnetic stud ball can be directly positioned and fixed at the accurate position, and the construction can be carried out directly. 4. More Versatile: The Stud Ball can detect metal through up to 5/8inch drywall, wood or other thicker materials, and unlike any other type of stud finders. 5. Multiple Uses: Not only used as a stud finder, also used to find some small metal objects that fall on the ground, or to pull up metal objects that fall into the space. Since the magnetic stud ball has enough magnetic power, it can also hang some metal tools as a hook. Weight: 110 g Model Number: Wall Scanner color:Red Material:Plastic + Metal Package Contents: 1 x Detector Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.