Saint Laurent Sunglasses. Series number: SL 501. Color code: 001. Shape: Square. Lens Width: 56 mm. Lens Bridge: 17 mm. Arm Length: 145 mm. 100% UV protection. Frame Material: Acetate. Frame Color: Black. Lenses Type: Black. Rim Style: Full-Rim. UPC/EAN code: 889652376974. Saint Laurent Black Square Men's Sunglasses SL 501 001 56.