Product Size: Handle 4.41 inches/11.2 cm; Outer Diameter: 3.93 x 2.08 inches/10 x 5.3 cm; Inner Diameter: 3.77 x 1.89 inches/9.6 x 4.8 cm. Note: This magnifier offers 5X magnification, unlike others with 3X. Large Field of View: The large 5X magnifying glass provides a wider field of view, allowing you to observe subtle details without distortion. The optimal viewing distance between the magnifier and the magnified object is 3-5 cm. Ergonomic and Safe Design: The non-slip handle is specially designed for extended reading without fatigue. Gift for Grandparents: This lightweight magnifying glass helps grandparents see and read clearly. Beautifully packaged, it includes a cleaning cloth and a velvet pouch for easy carrying and use. Wide Range of Applications: Suitable for seniors, children, and professionals for reading, map viewing, equipment inspection, observing plants and animals, watch repair, coin collecting, insect observation, etc.