Amazon.com: Ray-Ban RB3016 CLUBMASTER BLUE-VIOLET LIGHT 。FRAME Black Ray-Ban Clubmaster Blue-Light Clear sunglasses, with their classic black frame color, are a must-have for all digital natives. These unisex square frames are made of acetate material with mirror lenses for an edgier look. The clear lenses with blue-violet light reduce exposure to blue light* from artificial sources and sun rays (primary source) — making these glasses ideal for everyday lifestyle.Blue-violet light is between 400 and 455nm as stated by ISO TR20772 2018. STYLE RB3016 Clubmaster Blue-Violet Light Clear MODEL CODE RB3016 901/BF 51-21 MADE IN Italy New