Your Satisfaction is Our Greatest Pursuit. If You Have Any Questions, Please Feel Free to Contact Us, We Will Reply to You Within 24 Hours. Product Name: Magnifier Product Weight: 135G (Without Battery) Colour: Black Lens: Optical Lens Magnification: 10X Frame Material: Abs Power: Button Battery (For Express Delivery Safety, Battery Embargo, Please Prepare Yourself, Please Understand, Thank You!) Light Source: 2 Led s This Product Only Sells Magnifier, and the Image Does Not Contain Other Products.Material: Optical Lens. Features: Exquisite Workmanship, Compact and Portable, Head-Mounted Design, Liberating Hands, Easy to Use, Built-In Led , Convenient for Night Use, Reading When the Light is Not Bright Enough. Scope of Application: Reading Books, Reading Newspapers, Student Field Trips, Jewelry Identification, Inspection and Maintenance, Field Observation, Viewing Stamps. Size: Like Glasses, Abs Plastic, Lightweight. Function: Professional Optical Lens, High Light Transmittance, High Refractive Index, Stable Physical and Chemical Properties, Small Dispersion Coefficient, No Distortion in Imaging, for the Eyes.