🎈 Dive into the ooey-gooey fun of science!
Steve Spangler's Jelly Marbles are super absorbent polymer beads that can absorb 300 times their weight in water, making them a fun and educational tool for Halloween parties and science experiments. They are reusable and come with an activity guide to explore the fascinating world of hydrogels.
Trustpilot
1 month ago
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