Imagine your child building math skills with ease!
Children just can't resist the pull of our patent-pending magnetic blocks, cards, and activities. Two-sided number and activity cards start your child on the road to numeracy and math positivity. The included cards offer activities ranging from stacking and counting to counterbalance and "taking away."
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Playful Learning
Kontu® STEM Blocks are the perfect toy to engage your child in “stealth” learning during school uncertainty this year. These magnetic blocks provide fun and playful learning to children of many ages. As your child grows, the blocks support them along their cognitive development.
Versatile Activities
- explore magnetism
- learn to count
- learn to recognize numerals
- build structures
- explore simple physics
- playfully explore arithmetic
- and so much more!
Sustainably Made
Our children will inherit the planet as we have left it to them. As a company, we feel it is our responsibility to create products that benefit our children today as well as tomorrow.
STEM Blocks are made in Thailand from the wood of the Para rubber tree. Formerly a waste product that would be burned at the end of its lifespan, rubberwood is now harvested and turned into other products, like our toys!
From Our Family to Yours
When we couldn't find the sort of resource we wanted, we decided to create our own. Thus STEM Blocks was born!
In its first year, Kontu has sold over 4,000 kits in eight different countries. We feel blessed to be helping families around the world engage their young children in early math and STEM learning.
We are a small family business aiming for big impact. Please join us on this journey. We hope to meet you!

Grows with your child as they grow
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Our Pledge
Early math skills are critical to children's cognitive development and set the stage for later learning and achievement. Because of this important fact, we've made it our Mission to help underserved children and their families gain access and support in early math and STEM.
Presently, Kontu donates a percentage of sales to the National Black Child Development Institute, a non-profit dedicated to the success and well-being of Black children. As Kontu grows, we aim to make a direct impact for underserved children via an early childhood math program for families.