Hybbei obsessed with using design and innovation to create the products people truly like. For a better life, Hybbei focuses on the blue light blocking technology and brings you a clear life on digital times. Product Size: Lens Height: 38.3mm/1.51inch Lens Width: 53mm/2inch Nose Bridge: 15mm/0.59inch Temple Length: 138mm/5.43inch Frame Width: 142mm/5.59inchProduct Features: EYES PROTECTION: Effectively blocking 100% harmful blue ray and alleviating visual fatigue. UNIQUE DESIGN: Ideal for daily use like reading, working or playing, all-match for men and women, casual and stylish. Each Package Kit Includes as Following: 1x Blue Light Blocking Glasses. 1x Eye Glasses Case. 1x Blue Light Test Kit. 1x Premium Anti Fog Cleaning Cloth.Cleaning Tips: - Wash in warm soapy water, wipe dry with the soft glasses cloth. - Do not use abrasive detergents or sprays. - Store in a protective case or a fabric spectacle bag.