Product Type: Optical glasses/sunglasses Lens Material: Acetate Frame Material: Acetate Lens Size: 35mm x 35mm Temple Length: 145mm (5.7") Bridge Width: 29mm (1.1") Fit: Medium Weight: 25.4g (0.056lb) Detailed Description: The product is described as an acetate frame, suggesting it is a type of sunglasses or optical glasses using acetate