Matsuda M1036 Rectangular Optical Frame combines handcrafted acetate construction with engraved titanium core details for a durable, artisan eyewear option suited to everyday wear and prescription fitting. Key attributes: Gray | Cr | Acetate | Blue-light filtering option available | UV-filtering lens options available | Custom 7-barrel hinges | Prescription-ready frame | Includes protective case (varies by retailer) | Rectangular / square silhouette | Full-rim frame | Hand-engraved titanium core wire | Thick handmade acetate profile | Dimensions & fit: Bridge width: 1.8 cm | Total width: 15 cm | Arm length: 14.5 cm | Lens diameter: 5.4 cm | One size | Available in 54 mm lens width | Composition & care: Acetate 100% | Titanium | Wipe lenses with a microfiber cloth and lens cleaner. Clean frames with mild soap and water and dry immediately. Store in the provided protective case when not in use. Avoid exposure to extreme heat and abrasive cleaners.