Easy to replace batteries. Powered by 3 x AAA batteries (3 x AAA Batteries NOT INCLUDED). With high brightness, two LED lamps can make the magnifier clearer. Made of high quality ABS and optical glass lens,durable & long time service. This small, yet handy Magnifier is light weight as well as very functional. Can be used for close inspection of items like map, circuit boards, hallmarks, stamps, coin collectors, hobbyists and collectors of Antique Styles. Specifications: Size: 12x3x3.4cm/4.7x1.2x1.3in Material: ABS, plastic lens/glass lens Lens diameter: 1.95cm Magnification: 40X Battery: 3 x AAA battery (excluded) Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1x Handheld Magnifier