Magic Water ELF Toy Kit
The material of magic gel is sodium alginate. It's a safe substance extracted from seaweed.
The magic elf powder is food-grade calcium lactate, safe for kids' soft hands.
The magic gel reacts with magic water; they exchange calcium ions.
A gel film is formed on the mold surface, and the water elf will demold.
Leave these elves in magic water for 3-4 hrs; the inside will be solidified entirely.
After the elves are entirely coagulated, kids can play with them on their hands.
Kids can learn basic scientific knowledge from this magic water elf toy kit, and it will inspire them to explore science!