Boss 1725/G/CS 807 (M9) Optical Frame by Boss pairs a classic rectangular acetate frame with an included clip-on sunshield for versatile everyday wear. Ideal for switching between prescription use and sun protection without changing frames. Key attributes: Black | Acetate | UV protection | Prescription-ready | Included clip-on sunshield | Spring hinges | Includes branded case and microfibre cloth | Rectangular full-rim frame | Squared silhouette | Subtle temple branding | Dimensions & fit: Lens width: 51 mm | Bridge: 21 mm | Temple length: 145 mm | Lens height: 43 mm | Composition & care: Acetate | Wipe lenses with a microfiber cloth and mild lens cleaner; avoid abrasive cleaners and solvents. Store in the supplied case when not in use.