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 magnifying glass has a 5X magnification, unlike other 3X magnifiers. 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 magnifying glass and the object is 3-5 cm. Ergonomic and Safe Design: The non-slip handle is specially designed for long-term reading without fatigue. Perfect Gift for Grandparents: This lightweight magnifying glass helps your grandparents see and read clearly. Beautifully packaged and equipped with a cleaning cloth and velvet pouch for easy carrying and use. Wide Range of Uses: Suitable for seniors, children, and professionals for reading, viewing maps, inspecting equipment, observing animals and plants, repairing watches, collecting coins, observing insects, etc.