UltraOptix UL-DM2BX - 2 inch 4x UltraDome Dome Magnifier. This solid acrylic dome magnifier offers optical clarity by gathering light. UltraDome glides effortlessly across any surface for ease of use. View magnified objects from any distance, in perfect focus! In fact, several people will be able to view the subject at the same time! UltraDome can be used in viewing maps, charts, fine print, stamps, coins, photographs, and even X-Rays.