Lightweight, durable loupes that supply microscope-quality magnification for dentists and surgeons. Available in 2.5, 3.0, 3.3 and 4.0X magnifications. Proprietary system calculates pupillary distance using a simple selfie. After purchase, you will be contacted by Epic Loupes to walk you through this process. Most orders ship within 48 hours of receiving your pupillary distance picture. 1-year warranty on frames, limited lifetime warranty on magnifiers. Epic LED Light sold separately.