ABOUT KANASTAL KANASTAL founded in 2001, though the years has changed, the design and production goal of KANASTAL has never changed: fashion design and durable quality. We always want to provide our customers with a pair of blue light eyewear that are most comfortable and most suitable. So KANASTAL spends a lot of time and energy in the design of blue light blocking glasses. Besides, we also wants to be perfect in the quality of products. From selecting manufacturing materials to packaging products, we strictly control every process flow of product production and only order to provide the qualified products. you can always find a pair of blue light blocking glasses which is most suitable for you in KANASTAL.The best products are not the most expensive but just most suitable for you KANASTAL believes Fashion More and Glamour Up! PRODUCT FEATURES: 1.Unbreakable Material Frame with supreme TR90 material, lightweight, flexible and durable. Perfect for your play and work time. 2.Comfortable material The frames are super light but very strong, it is suitable for any face, gentle,floating and smooth tactility on your face, give you a comfortable wearing experience which reduce eye fatigue and maintain eye health. WHAT YOU WILL GET KANASTAL Fashion Blue Light Blocking Glasses X1 KANASTAL Anti-blue Light Test Card X1 KANASTAL Cleaning Cloth X1 KANASTAL Packing Box X1 KANASTAL Soft Pouch X1 mini screwdriver X1