Polaroid Square Acetate Frame combines a classic full-rim square silhouette with durable acetate construction. It comes with demo lenses and a branded case, and features spring hinges for a secure, comfortable fit. Key attributes: Black | Acetate | Spring hinge | Includes demo lenses | Branded case included | Full-rim | Square silhouette | Dimensions & fit: Size: 51-20-145 | Lens width: 51 mm | Bridge width: 20 mm | Temple length: 145 mm | Lens height: 45 mm | Frame width: 135 mm | Composition & care: Frame: Acetate | Lenses: Plastic