This is a finer device which is made with ABS material, with reasonable design and practical functions. Excellent craftsmanship makes it have the characteristics of high strength, weather resistance, wear resistance, and resistance to deformation. It is suitable for stud finding use. A nice helper for building decoration. Features -Color: Blue. -Material: ABS, . -Size: About 13.60X5.00X2.30cm/5.34X1.97X0.90in. - Power supply: 9V F622 batteries(Not included). - Made of ABS material, with high impact resistance and toughness, so that the service life is longer. - Lightweight, hand-held for easy use as a portable home device. - Multifunctional metal scanning for finding nail, , and other hidden metallic objects. - It will remind you of when it detects wall studs, wall nails, metal , electrical wires, etc. - Widely used in construction, fitment, carpentry, home decoration, renovation, etc. Package list: 1 x wall nail detector 1 x manual