KIDS SUN BANGLE
Magic bracelet which changes colour in the sun
A rubber bracelet changing colour in the sun allowing to evaluate, in just a few seconds, how strong the intensity of UV rays is.
When exposed to the sunlight, the bracelet changes colour as follows:
1) It turns deep blue within 30 seconds: the intensity of UV rays is very high. Hat, T-shirt, sun glasses, high protection sun lotion according to your phototype are required.
2) It turns light blue within 30 seconds: the intensity of UV rays is moderate. Medium/high protection sun lotion according to your phototype is required.
3) It does not change colour in absence of sun.