plastic lens 1.spectacle clear acrylic lens 2.Diameter 65mm Thickness 2.2mm B.C.450 3.high quality, safe package, low ... make 55mm, 60mm, 70mm, too)3. Thickness: 2.2mm (we also make 1.0mm, 1.2mm, 2.0mm, too)4. Base curve: 450C (we ... -coated (we also make Hard-Coated, Hard Multicoated, too) 6. Used for: optical frames, eyeglasses frames, spectacle frames7. Certificate: SGS / ROHS / CE8 ...