From Peepers, these Women's Take A Bow Two Tone Square Blue Light Reader Glasses feature: Recycled polycarbonate material Spring hinges Acrylic aspheric material lens Dual anti-scratch coating 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 UV400 protection blocks 99.9% of UVA/UVB rays Approx. 51mm lens - 17mm bridge - 152mm temple Imported.