Specially designed for reading on your computer, smartphone, or tablet, our Blue- Blocking Readers have specially coated lenses to help reduce eye fatigue and blurred vision associated with electronic screens. Durable and very attractive frames—choose red, black, or green—fit well for most men and women. Please specify magnification: 1.0, 1.5, 2.0, 2.5, 3.0 or 3.5. Each comes with a matching felt case.