From Peepers, these reader glasses feature: Recycled polycarbonate material Soft square shape Blue light focus lenses- utilize proprietary baked-in technology that filters over 40% of high-energy visible blue light 7 layer anti-reflective coating- enhances contrast and visual acuity by reducing reflections (glare) on the surface of the lens Unique lens clearness- all the comfort, all the style, with barely-there tints  Dual anti-scratch coating for long-lasting protection UV400 Protection blocks 99.9% of UVA/UVB rays Polycarbonate aspheric material lens that s ultra-thin Spring hinges for a durable, comfortable fit  Approx. 52mm lens- 19mm bridge- 150mm temple Imported.