Monthly Payment at 4 installments with AfterPay. These authentic GU7871 01B sunglasses have Black Plastic frames and are available online for a discounted price at SmartBuyGlasses. Guess sunglasses are the perfect way to shield eyes from harmful UV rays whilst staying a step ahead of the fashion curve. Lens color: Gradient Grey. Lens material: Plastic. Collection: Women 2020. Size: 59. Condition: new. Warranty: 24 months. UPC: SG627774. Authencity guaranteed.