Brand: Duke NickleModel: DN1078MSYHCender: UnisexGlass Type: Mineral GlassEnclosure: 54Bridge Gap(mm): 12Sleeve Length(mm): 138Frame Material: PlasticFrame Type: SquareFrame Color: BlackGlass Color: Black3. Level Sunlight Filtering Capacity (Weakest 0 Strongest 4 - EU Standards) Shipped with UV400 Protection Warranty Certificate. 2 Year Warranty. Manufactured in accordance with European Union and Sunglasses Standards Coded EN 1836: 2005/A1:2007