DIMENSION:Lens width:50mm,Lens bright:19mm, Arm:143mm
PROTECT YOUR EYE: Anti harmful blue light, 100%UV, screen flicker, anti-fatigue, provide all-day protection
MATERIAL:Plastic, which has the characteristics of super lightness, abrasion resistance, low friction coefficient and so on. It can effectively prevent the damage to the eyes and face caused by the fracture and friction of the eyeglasses frame in the movement,metal hinge is more stable
FEATURE:Spring metal hinges make it more suitbale for everyday wear,and fit most faces
GURANTEE:30 Days Customer Satisfaction Guarantee,please feel free to contact customer service if you have questions