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UV test Card react with the intensity of UV ray to remind you of proper protection on skin. By comparing the color on the sensitive area to the reference scale, It is possible to know how strong the outdoor UV ray is. The UV sensing function can be available as cards, stickers, or bracelets in the watch shape.
It is great premium for cosmetics, outdoors and spot products.
1. Size:85mm X 54mm
2. OEM is available
3. all design is available
UV test Card , color changing card, UV tester ,UV checker