Bộ 5 thẻ thử điện chuyên nghiệp ánh sáng xanh chống tia UV

Size:60*40mm/2.36*1.57"(approx.)
100% brand new & high quality
Quantity:5pcs
The white area is the test area.
Color:Blue
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!