Features： 1、Upgraded Double Sided Coating: High light transmittance, improve color sensitivity, help correct color identification, suitable for red green colorblindness and color weak people. 2、Light Glasses Legs: Flexible and elastic, not easy to pinch the face, open and close smoothly, suitable for a variety of face shapes, easy and comfortable to wear. 3、Reasonable Structure: Exquisite workmanship, pay attention to details, ergonomic nose pad, smooth hinge, non slip and curved glasses leg, suitable for men and women. 4、Multiple Applicable Scenarios: Light weight and in small size, comes with storage case, easy to carry, suitable for driving, artistic creation, IT industry work, etc. 5、PC And Stainless Steel: Red green colorblindness glasses adopts PC lens and stainless steel frame, safe and eco friendly, anti impact and firm, stable and sturdy, durable for use. Specification： Item Type: Color Blind Glasses Product Material: PC, Stainless Steel Frame Color: Dark Blue Function: Help color blind and color weak people correctly identify colors Package List： 1 x Glasses 1 x Glasses Cloth 1 x Test Map 1 x Storage Case