Ray Ban Sunglasses. Series Clubmaster. Color code: 877/M3. Size: 57. Shape: Square. Lens Width: 57 mm. Lens Bridge: 16 mm. Arm Length: 145 mm. 100% UV protection. Polarized. Frame Material: Nylon. Frame Color: Black. Lenses Type: Grey Gradient. UPC/EAN code: 8053672789355. Ray Ban Clubmaster Grey Gradient Square Polarized Men's Sunglasses RB4175 877/M3 57.