Eyewear Blue Light Detection Anti-Blue Light Test Card Test Light Glasses Accessories Card UV Test

Label:Yes Color:Blue 100% brand new & high quality Size:60*40mm/2.36*1.57"(approx.) The white area is the test area. Quantity:5pcs Package include: 5pcs Anti Blue Test Card Note It can be reused, and the irradiated test card will recover after 1-2 minutes. The test card needs to be used with ultraviolet pen or ultraviolet lamp. Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!