Features:Precision zoom microscope with 20X-40X magnification ratio. High brightness LED illumination.An ideal microscope for hobbyists, collectors, electronic engineers, scientists and students.Focus can be adjusted by rotating the wheel.The rotatable LED bulb can focus the light on the object.Mini pocket size, convenient to take with you.Specification:Model: MG10081-8Material: ABS Plastic and glassMagnification: 20X-40XBattery type: 3 * LR43 batteries (NOT included)Size: 115*70*47mm / 4.5*2.7*1.8inWeight: Approx. 97g / 3.4ozPackage list:1 x LED Lighted Mini Microscope1 x User ManualNote:1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item.2. Please allow slight error due to manual measurement. Thanks for your understanding.