ThinOptics Keychain Case and Readers Rectangular Reading Glasses, Silver Case/Blue Frames, 44 mm

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: We use the same lens material regularly used in high-end prescription glasses. The lenses are made by one of the most advanced optical lens manufacturers in the world. Comfort: ThinOptics reading glasses are feather-light. They grip with gentle pressure and can be moved up or down your nose for optimal fit and comfort. Convenience: ThinOptics Keychain Readers include both the ThinOptics Reading Glasses & a handy keychain case to keep the flexible glasses safe and attached to you wherever you go. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.