Product description Enjoy clear eyes and reduce headaches with blue light blocking glasses and photochromic sunglasses designed for reading, biking, and other outdoor activities. Product Details: Blue light blocking reading glasses HD clarity anti-glare lenses Photochromic gray lenses Lightweight, comfortable frame Multi-magnification choice Gender neutral (men and women) Order Includes: Yein eyeglasses Soft cleaning cloth Glasses case Silicone ear hooks Small screwdriver Blue light blocking test tools Attention: When wearing glasses, please hold the temples with both hands When not in use with lens cloth, the lens up and placed in a special bag, beware of the lens and the frame is scratched by hard objects. Frames or lenses contaminated with dust, sweat, grease, cosmetics, etc. Please use a mild detergent warm water, then dry with a soft cloth. Prohibit prolonged exposure to water, soaked in water and placed in a fixed place by the sun exposure; prohibit the prolonged exposure to current, metal edge. - Blue light blocking: Cut 85% blue light, reduce eyestrain and enjoy a better sleep - Anti sunlight: Photochromic brown sunglasses help you to care of eyes (outdoor activities) - Almost clear lens: Lens with little yellow tint, no impact the electronic screen color - Frame feature: Only 11g, super lightweight, flexible and durable - Warranty: we attach great importance to customer experience, if you have any question, please contact us, we will provide you with excellent service