Specification: Product Name: Magnetic Stud Finder Material: Plastic + Metal Size: 8.5 x 2 x 1.5 cm / 3.3 x 0.79 x 0.59 inches Suction Force: 27lbs Highlight description: Strong Suction: This magnetic stud finder has a strong suction of 27 pounds, strong suction, no batteries needed to use, very convenient Compact: This stud ball finder measures 8.5 x 2 x 1.5 cm / 3.3 x 0.79 x 0.59 inches, compact and portable, can be put into your pocket and accessed at any time. It is comfortable to hold and can be used with confidence Penetrative: This stud finder can detect metal through 0.62 inches of gypsum board or other thicker construction board Easy to Use: You don't need to mark it, just keep it close to the wall and locate it directly when it detects a screw or nail head, which makes it easy for you to work directly Practical Tool: This stud finder tool has a strong magnetic suction to find nails quickly, very practical Note: 1.This item is not suitable for children 13 years and under. 2.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 3.Please allow slight dimension differences due to manual measurement. Parts List: 1/2 × Magnetic Stud Finder This stud ball finder is small and portable and can be accessed at any time. It has a suction force of 27 pounds, which can find the screws quickly and improve the construction efficiency. This stud ball finder measures 8.5 x 2 x 1.5 cm / 3.3 x 0.79 x 0.59 inches, compact and portable, can be put into your pocket and accessed at any time. It is comfortable to hold and can be used with confidence. This stud finder tool has a strong suction power to find screws quickly, thus improving work efficiency. The compact stud finder will make your probing tasks easier and more efficient. Stud Ball uses a rare earth magnet to detect metal through walls. This stud magnet never struggles to find the precise location of any metal frames, screws, or nails. The natural magnetic force locks on to any metal it finds. The spherical shape of the Stud Ball Magnet produces a higher magnetic field, allowing it to accurately detect metal behind thick building materials.