100% Authentic What do you get when you cross a circle with a square? You get the hexagonal RB 3548N, the evolution of round featuring flat crystal lenses.Round has met flat, when it comes to lenses that is. This hexagonal round metal shape features thin coined profiles and flat crystal lenses on gold Model Number: RB3548N Color Number: 001/9O Style: Hexagonal Flat Lenses Frame Material: Metal Frame Color: Gold Lenses: Blue Classic G-15 Shape: Round Size Lens-Bridge: 51 21 Temple Length: 145