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Top Positive Review for %s on Banggood, Shop best %s with lowest price on Banggood. Browse most helpful positive review for %s before you buy., rc toys, fun sports, fashion, popular electronics
18/12/2018
These things are amazing! They are about 1/16th of an inch to start and after you add water they swell to almost 1/2 inch! Cover them with a couple inches of water and let sit over night. I shine a 1 watt laser through them and get some crazy effects and patterns on the wall. Fun to play with or put some in the soil of potted plants to help regulate moisture content of the soil.
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