3 Inch 4X Dome Magnifier with Polishing Pouch by Electro-Optix 4x Magnification, High Quality Solid Optical Grade Acrylic 3 inch Distortion Free, Hands-Free, Dome Magnifier Self-focusing light gathering design, no need to hold at focal length Glides effortlessly across any surface, Ideal for maps, charts, small print, newspapers, mechanical drawings Includes polishing storage pouch