Bolon Ella Sunglasses. Color code: A31. Shape: Round. Lens Width: 51 mm. Lens Bridge: 19 mm. Arm Length: 145 mm. 100% UV protection. Frame Material: Metal. Frame Color: Rose Gold. Lenses Type: Purple. Rim Style: Semi-Rimless. UPC/EAN code: 6933107627686. Bolon Ella Purple Round Ladies Sunglasses BL7106 A31 51.