Gunmetal (004/B1) Sunglasses with Dark Gray lenses (RB3666 004/B1 56) by Ray-Ban™. Size: 56-17-140, Shape: Irregular, Material: Metal. The unmistakably stylish RB3666 004/B1 56 sunglasses for unisex are some of the most successful models designed and crafted by Ray-Ban. The Gunmetal metal frame will perfectly complement your style, while Dark Gray lenses will add a touch of signature style to your outfit, making for a distinct appearance. The full rim irregular is right what you need if you want to look great and feel great at the same time. Thanks to their thoughtful design, they also deliver reliable UV protection. The model is available in 56-17-140 size and ensures a perfect fit for most face shapes. Specifications: Lens Width: 56 mm Bridge Width: 17 mm Temple Length: 140 mm Color: Gunmetal / Dark Gray Frame Size: 56-17-140 Model: RB3666 Frame Color: Gunmetal Frame Material: Metal Frame Shape: Irregular Frame Type: Full Rim Lenses Color: Dark Gray Polarized: No Mirrored: No Type: Sunglasses Gender: Unisex Style: Casual Manufacturer: Ray-Ban