Features： 1、CHARACTERISTICS: Double sided coating technology, with good light transmission, similar to sunglasses, unique style, while having some UV protection. 2、FUNCTION: To improve the ability of color blind people to correctly identify colors and to help red green color blind people to identify colors in their daily life and work. 3、LIGHT WEIGHT: The frame is very flexible, light and elastic, comfortable to wear, smooth opening and closing, suitable for all face shapes, easy and comfortable to wear. 4、APPLICABLE SCENARIOS: For colorblind and color weak people to help them identify colors in driving trips, art activities, IT work, and daily life. 5、RESIN: These red and green blind glasses are made of ultra lightweight and durable resin frames, which are lightweight and feel more comfortable to wear. Specification： Item Type: Color Blind Glasses Material: Lens resin, frame resin Function: Improve color blindness color weakness people correct color recognition Nose Distance: 4mm / 0.2in Total Width of Frame: 136mm / 5.4in Frame Height: 46mm / 1.8in Leg Length: 142mm / 5.6in Package List： 1 x Eyeglasses 1 x Glasses Case 1 x Glasses Cloth 1 x Test Chart