De Ding Metal Half Rim Bifocal Reading Glasses with hard coating reading lens metal alloy frame Composite lens non-polarized Lens width: 53mm Lens height: 36mm Bridge: 18mm Arm: 138mm Hard coating ,anti scratch , bifocal reading glasses for seeing the gauges while driving, and also is useful for reading a computer screen or the top of a newspaper Estimated delivery : 7-15 days by E-packet Scratch Resistant - Anti-scratch coating on lens. come with high quality leather case and cloth