Frame Type: Rimless lenses are held by screws or clips directly to the bridge and templesFrame Material: Metal Gold solid gold, typical of CartierLens Material: High-quality optical glass or polycarbonate designed for clarity and durabilityLens Technology: Gradient lenses darker at the top, gradually lightening towards the bottom, offering both sun protection andclear vision for reading or viewing lower objects.UV Protection: Provides 100% UVA/UVB protection.Signature Details: Features the distinctive Cartier "C" de Cartier hinge design and engraved Cartier logo on the lens.Handle with extreme care due to the rimless design, which can be more delicate than full-frame glasses.Clean lenses regularly with a dedicated lens cleaner and the provided Cartier microfiber cloth to avoid scratches.Store sunglasses in their original hard case when not in use to protect them from impacts and dust.Avoid placing sunglasses face down on any surface.Do not expose to extreme heat or cold, as this can affect the lens coating or frame materials.Avoid contact with chemicals, perfumes, or hairsprays which can damage the coatings or frame finish.Professional cleaning and adjustment by an optician are recommended periodically.