These fun, space-themed stickers are re-usable and what’s more? They glow in the dark! The sticker has the function of absorbing light, which can be kept for 2~5 minutes when the light is sufficient. Noctilucent paste still does not affect the use of luminous paste after being completely immersed in the water. Perfect for any kid who doesn’t like the dark or is a Space fanatic. A little reminder: you must turn on the light to absorb the light before use.