Features: Blue Light Filter Glasses:This glasses can be used as blue light blocking glasses the lenses can block harmful blue light from digital screens and UV400. It is suitable for indoor and outdoor activities such as reading working shopping walking. Premium Material: The fashionable style is very suitable for decorating your face. It is made of quality PC materials durable and light in weight. Stylish Design: Classic square frame. Created exciting and unique looks give these glasses comfort alongside pristine fashion that will make your style ageless square frame design is perfect for your face. Improve Sleep:Long-term exposure of the eyes to blue light will slow down or stop the production of melatonin resulting in sleep disorders. Our blue light glasses can prevent your eyes from being invaded by blue light and provide you with better sleep. Intimate Service: If you confront any problems about our products please feel free to contact us we are ready to help. We will solve your problems as soon as possible. Specification: Material:PC Metal Glasses Total Width:144mm Glasses Leg Length: 140mm Mirror Height: 49mm Single Lens Width:54mm Nasal Spur:24mm Weight:35g Notice: 1. Due to different monitors and lighting effects the actual color may be slightly different from the image. 2. Due to manual measurement please allow 1-3mm deviation. includes: 1*Glasses "