Portals

Absolutely. Our blocks are made from non-toxic, BPA-free ABS plastic with rounded edges for safe play. They meet international safety standards and are built to last.

Each STEMCraft block measures 2x2x2 cm and is designed to fit perfectly in small hands. Despite their compact size, they’re solid and durable, with each block weighing approximately 5.3g.

We believe our products truly make a difference, and we stand behind them with confidence. That’s why every STEMCraft item comes with a 15-day money-back guarantee. To be eligible for a full refund, items must be unopened.

Yes, we do ship Worldwide! LATAM, North America, Europe, Middle East, Africa and Asia.