Water Beads, or Water Balz, is a small ball of polymer material that can expand 400 times from its original shape, to become full size water beads, it must be immersed in water at least 4 hours.
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From @dodiaceh2
Water Beads, or Water Balz, is a small ball of polymer material that can expand 400 times from its original shape, to become full size water beads, it must be immersed in water at least 4 hours.
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