These 47mm OU prismatic spectacles are ready to dispense and ideal for eccentric viewing. CR-39 lenses are affordable with the highest abrasion/scratch resistance of any uncoated optical plastic.
Optelec's PowerSpecs line of spectacles is made with durable frames, with spring hinges, nose pad, and superior optics. Refined in the USA, these spectacles include a two-year warranty and are delivered with a hard case.