Guess Gu 50436 Optical Frame pairs a square acetate silhouette with a shiny dark brown finish for polished everyday wear. Designed for prescription use, it balances style and practicality. Key attributes: Brown | Acetate | Suitable for prescription lenses | Square frame | Shiny finish | Dimensions & fit: Lens width: 51 mm | Bridge width: 19 mm | Temple length: 140 mm | Size M | Composition & care: Acetate Colour: brown