Made of plastic, otherwise known as cellulose acetate, or zyl, the eyewear frame can be easily adjusted for a perfect fit with your prescription lenses. You can add doctor verified prescription lenses, add custom polarized lenses, and many other lens options if you desire them. Like all Burberry products, these eyeglasses frames provide the sophisticated and classic look that we all need. Material: Plastic Rim: none Gender: Female Age Group: Adult Country: Italy Category: Womens Product Group: Prescription Eyeglasses Eye Diagonal "ED": 51mm SKU: BE2318F4012 51 Manufacturer Warranty: N/A Progressive Friendly: Yes Gently worn from smoke and pet free home. Bundle items to save on shipping. Feel free to make a reasonable offer. See photos