All SUPSTEM toys are thoroughly independently tested in third-party laboratories. They are BPA-free and non-toxic. Xlecom is the original seller, so please beware of imitation knockoffs.
We are committed to supporting the growth of STEM education through our building blocks that create opportunities for high-quality learning
This set was inspired by parents and teachers looking for fun and engaging activities to establish a solid foundation for STEM education; Give your children a gift that will last, that will be cherished, that will be played with countless times.