How is This Magnifying Glass? Perfect for the Elderly, Young and Amblyopic Great Magnifier for Seniors, Children and Those Who Have Low or Impaired Vision of Most Types. It's Excellent for Reading Books, Newspapers, Magazines, Maps, User Instructions, Etc and Other Close Works, Such As , Watchmaking, Handcraft and Exploring. It Can Be Installed on Eyeglasses in a Simple Way It is Also Very Convenient for You to Do Detailed Work with Your Hands the Needs of Different Work Can Be Met by Changing Lens It is Easy to Carry Due to Its Folding Type Feature. It Can Be Conveniently Used on Any Occasion Viewing Objects in Three-Dimensional Way by Double-Eye Type Lens Can Make It Very Interesting to Do More Detailed Work in Order to Meet Different Needs, Lens with About 1.5, 2.5 and 3.5 Magnifications Are Available. Specifications: Materials: Acrylic Powers: 1.5X, 2.5X 3.5X Lens Diameter: 7.4Cm X 2.8Cm (L X W ) Color: Transparent Package Includes: 1 X Clamp 3 X Clip-On Magnifying LensSatisfaction Goal: Our Goal is to Provide Creative, Innovative Products So That Everyone Can Have Quality, High-End Enjoyment. We Are Committed to Making Sure You Love Your Purchase, So If for Any Reason You Are Not Satisfied, Please Contact Us and We Will Make Things Right. Material: Optical Lens, Scratch-Resistant, Abrasion-Resistant. Scope of Application: Student Field Trip, Identification, Inspection and Maintenance, On-Site Observation, Suitable for Children, Adults, Seniors, Amateurs and Professionals. Clear Distortion-Free Magnifying Lens. High-Precision Glass Lens Brings Subtle Details. the Shatter Resistant Lens with No Smeaand Bluron the Images.