- Acrylic lens, only perfect fit same size eyeglasses
- Block 40% blue light, almost no color distortion
- Frame width about 5 1/16 inches (128 mm) stretch to 5 15/16 inches (150mm)
- Lens width about 2 5/16 inches (58mm)
- Lens height about 1 1/2 inches (38mm)
- Bridge (DBL) about 3/8 inches (10mm) stretch to 1 inches (25mm)
- EYEKEEPER FLIP-UP CLIP-ON BLUE LIGHT BLOCKING GLASSES: Blue light filter glasses, just flip-up and clip on the glasses, ideal for working, gaming, browsing on computers, tablets, smart phones, TV or softening office harsh LED lights.