Tetra
Tetra is an amusing color marker with interactive building toys for kids and the idea of tetra marker is not only encourage children to be creative but encourage them to reuse the marker rather than simply discarding these into the trash after the ink dried up and this will help kids to develop and raise awareness of reuse among them. The shape of a tetra cap makes it easy to press and pull out. Kids can put each cap and pen barrel together to form a shape and explore to build a new abstract shape and it’s up to their imagination bend the rule and come up with new structures.
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