Brand new, unopened. Main unit (1) and tester card (1). [The actual item in the 4th photo will be sent] Blue light cut tester #glasses #presbyopia #sunglasses Features: A set of blue light and a blue light detection card. You can place the lens of the glasses on the card and shine blue light on it to test and visualize whether the glasses are effective against blue light. 〇 Shipping is by anonymous delivery with tracking, using [Yu-Packet Post Mini]. 〇 Please refrain from purchasing if you are [sensitive] to overseas-made products. 〇 The colors in the photos may look slightly different depending on the model of your smartphone, computer, tablet, etc. Thank you.