Maintenance: When not in use, please always store the magnifying glass in the protective case and gently wipe the optical lens with a microfiber cloth to maintain clear vision and prevent scratches. Precautions: Please handle the magnifying glass carefully to avoid dropping; do not use abrasive materials the lens to protect the delicate optical coating. PMMA optical lenses: optical lenses, protect vision. the clarity is improved by 4% compared to ordinary glass, light weight, anti drop, and the enlarged edge is not deformed Metal frame: Vintage metal frame, carefully polished and polished, with a smooth feel and classic styling Removable design: Removable design, the handle is rotated and twisted down to separate from the frame, making it easy to carry Classic handle design, ergonomicHigh quality optical lenses, non dispersive, protect vision 29 LED lights: Circular lamp design with uniform light irradiation and high brightness without flash frequency, easy to handle reading/maintenance/appreciatione