The Matsuda M3166 Optical Frame is a handcrafted geometric titanium frame that combines lightweight comfort with finely engraved temple detailing. Designed for prescription lenses, it delivers a refined, architectural look for everyday wear. Key attributes: Yellow | Brushed gold | Pure titanium | Lightweight titanium construction | Durable construction | Prescription ready (demo lenses included) | Includes case and microfiber cleaning cloth | Geometric rectangular silhouette | Finely engraved temples | Precision angled rims | Dimensions & fit: Eye: 46 mm | Bridge: 23 mm | Temple: 145 mm | Composition & care: Front: Pure titanium | Temple: Pure titanium | Wipe lenses and frame with the included microfiber cloth; store in the supplied case.