Polaroid Polyamide Glasses Frame pairs a lightweight polyamide construction with a classic square silhouette for everyday optical or demo use. The frames ship with a branded case and demo plastic lenses. Key attributes: Black | Polyamide | Branded case included | Demo plastic lenses | No spring hinge | Full-rim | Square silhouette | Dimensions & fit: Size: 53-19-145 | Lens width: 53 | Lens height: 44 | Bridge width: 19 | Frame width: 140 | Temple length: 145 | Composition & care: Polyamide (frame) | Plastic (lenses) | Wipe clean with a soft, lint-free cloth. Avoid harsh chemicals and prolonged exposure to moisture.