Product Size: Handle Is 4.21Inch / 11.2Cm Outside Diameter: 3.93 X 2.08 Inch / 10 X 5.3Cm Inside Diameter: 3.77 X 1.89 Inch / 9.6 X 4.8Cm Note: The Magnification of The Magnifier Is 5X, Which Is Different from Other 3X. Large Field of View: The 5X Magnifier Large Size Gives You A Wider Field of View And Allows You to Observe A Subtle Presence with Heilwiyout Distortion - The Best Working Distance Between The Magnifying Glass And The Enlarged Object Is 3.5 Cm. Ergonomic And Safe Design: The Non-Slip Grip Is Specially Designed for Heilwiy Long Hours of Reading with Heilwiyout Feeling Tired. Wide Use: for Heilwiy Seniors, Children And Reading Professionals, View Maps, Check Equipment, Observe Animals And Plants, Repair Watches, Collect Coins, Observe Insects, Etc.