Ray‑Ban RB5445 Optical Frame combines a square acetate silhouette with a polished black finish for a refined, everyday look. The frame pairs easily with casual and formal styles and is designed for regular daily wear. Key attributes: Black | Acetate | Durable acetate frame | Includes original case | Square shape | Full‑rim frame | Polished finish | Dimensions & fit: Frame width 131 mm | Bridge 19 mm | Lens height 36.3 mm | Lens width 54 mm | Side length 145 mm | Composition & care: Acetate | Clean lenses and frame with a microfiber cloth and mild soap; avoid high heat and harsh chemicals. Store in the original case.