Carson MagniView 2X or 2.5X Power Compact and Lightweight Hand-Held Magnifiers with Spot Lenses for Reading, Hobby, Crafts, Inspection and Low Vision Tasks (DS-36 or DS-40) 2x Power Hand-Held Acrylic Scratch Resistant Magnifier with 4.5x Power Spot Lens | Lens Diameter: 3.25 inches Contains a built-in ergonomic thumb groove on the handle of the magnifying glass for added comfort and stability Great low vision reading aide | Built-in rim protects the lens from dust and scratching Ideal magnifier for hobbies, crafts, inspection, reading, coins, stamps, books, nature, office, wildlife and other tasks Backed by Carson's Limited Lifetime Warranty