Feature 1Magnetic stud detector, small and compact, can be easily carried in a pocket. 2Builtin powerful magnet can be hung on wall to free your hands when fixing rivets. 3No need to use battery, builtin level meter for easy marking and easy to operate. 4The soft grip is easy to grasp and suitable for detecting metals and nails. 5High detection accuracy, suitable for all gypsum boards and plasterboard wall.Item Type: Stud FinderMaterial: ABSWeight: Approx. 63g / 2.2ozProduct Size: Approx. 7.8x3x1.5cm / 3.1x1.2x0.6inUses: Detect metal and nails, used as a level gauge .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Stud FinderNote1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.