Luminous bracelet
Material: artificial luminous stone
Luminous color: blue green
Diameter size: 6,8,10,12,14,16,18,20mm
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Description
Put the sun or light for one or two minutes, it is best to use the purple light to shine better, and then put the dark light, yellow and green light is the brightest, but the time is short, blue and green light is the longest, it is the brightest at the beginning, and slowly fade.