Features: Large-caliber eyepiece with high-definition coating, clear imaging with extinction ladder, effectively eliminate stray light. The white light source of the LED auxiliary light will automatically light up when the battery bin and the mirror barrel are square. Use two AA batteries(not included), design portable and use more intimate. High power optical objective with additional film has high resolution, incisive edge and clear image. Humanized focusing ring design,using portable to adjust the focal length according to the actual situation. Specification: Condition:100% Brand New Item Type: Microscope Model: 10085-1 Material: Optical Glass Lens, ABS Color: White Diameter: Approx.2mm / 0.1in Size: Approx.136x50x20mm / 5.4x2.0x0.8in Weight: Approx.62g/2.2oz Magnification: 40X Lighting Source: 1 LED light Battery: 2 x AA battery(Not included) Package List: 1 x Magnifier 1 x Instruction Manual 1 x Bag1Large-caliber eyepiece with high-definition coating, clear imaging with extinction ladder, effectively eliminate stray light. 2The white light source of the LED auxiliary light will automatically light up when the battery bin and the mirror barrel are square. 3Use two AA batteries(not included), design portable and use more intimate. 4High power optical objective with additional film has high resolution, incisive edge and clear image. 5Humanized focusing ring design,using portable to adjust the focal length according to the actual situation.