Sensitivity Security Equipment Metal Detector Wand for Security Inspection Features: Stable Great for both home and work security. Robust- build for durability aginst wear and tear. Lightweight, easy to carry with, convenient to use. Can find not only large objects but also small one making sure no one has anything concealed. Specifications: Metal, Working Voltage: 9V Size: Approx. 75x25x375mm/2.95x0.98x14.76in Package Includes: 1 Set Metal Detector note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.