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Ages; 3+
The brighter the light is, the stronger the blanket will glow in the dark. Just expose the glow in the dark blanket to sunlight or a bright light source for 10 to 20 minutes and it will glow for at least 6 hours. The brighter the light and the longer the exposure time at the same time, the longer the blanket glows in the dark.
Measurement: L58in x W48in