**Blue Light Blocking Glasses Tester Kit - 10-Pack Anti Blue Light Test Cards for Eyewear | Professional & Convenient Blue Light Detection Tool for Home, Office & Screen Use**

Product Description

Feature:1. Including anti-blue light card and blue light generator, easy to use.2. Use blue light generator card shine on the white part, good using effect.3. The stronger the blue light, the deeper the color change, convenient test.4. To provide you with more professional services, used for eyeglasses test.5. Reusable designs, including 10 set of the package, meet your demands.Specification:Condition: 100% Brand NewItem Type: Anti-Blue Light Test Card + Blue Light Generator Material: Paper Usage: Anti-Blue Light Eyeglasses Test, Detection Blue Light Glasses reusable(repeated use: irradiated test card will automatically recover after 1 or 2 minutes)The stronger the blue light, the deeper the color changeTest Card Length: Approx. 8.5cm / 3.3inTest Card Width: Approx. 5.3cm / 2.1in Package List:10 x Anti-Blue Light Test Card 10 x Blue Light Generator