Item model number:Reading Glasses Department:unisex-adult Date First Available:May 24, 2023 Manufacturer:ThinOptics ASIN:B0C65YS1JX Made in the USA or Imported Hook and Loop closure Polycarbonate frame Polycarbonate lens Non-Polarized Lens width: 44.45 millimeters COMFORT: Designed in Silicon Valley, ThinOptics Readers are feather-light and engineered to grip with gentle pressure. STRENGTH: Every ThinOptics Reader is made of shatterproof, thermo-injection molded, optical-grade polycarbonate. The bridge is made from a shape-memory metal called Nitinol, which is 10x more elastic than spring steel and encased in medical-grade silicone tubing QUALITY: The lenses are made by one of the most advanced optical lens manufacturers in the world use the same lens material regularly used in high-end prescription glasses FIT: ThinOptics Readers have been designed to fit the vast majority of noses. They can be positioned higher up or down the nose for a comfortable fit. If fit is a problem, we offer a 30-day, money-back-fit guarantee CONVENIENCE - ThinOptics Keychain Readers include both the ThinOptics Readers & handy keychain case to keep your readers Always With You