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 magnification of 5X, which is different from other 3X . Large field of view: The large size 5X magnifying glass provides you with a wider field of view, allowing you to observe the subtle existence without distortion. The best use distance between the magnifying glass and the magnified object is 3-5 cm Ergonomic and safe design: the non-slip handle is specially designed for long-term reading without fatigue Grandparents gift: This lightweight magnifying glass will help your grandparents see and read clearly, beautifully packaged, equipped with a cleaning cloth and velvet bag, to carry and use Wide range of uses: suitable for the elderly, children and professionals to read, view maps, check equipment, observe animals and plants, repair watches, collect coins, observe insects, etc.