Double Magnifying Acrylic Lens (5D and 20D) – The is the magnifying lens with a dual diopter lens that magnifies at 5D and 20D, making it ideal for various tasks such as reading, crafting, sewing, jewelry making, soldering, performing skin treatments, other medical procedures, and other detailed work. You can easily switch between close-up and distance tasks with this versatile and efficient lighting solution.