Brain Flakes® brand discs from VIAHART are a new construction toy which teaches both boys and girls spatial thinking and lets their imaginations run wild! 16 wheels and 8 axles, which means hours of endless fun and engineering education. In addition to brain building, Brain Flakes discs improve the coordination and dexterity of young children, keeping both their minds and bodies active! They click together and apart easily for all ages and levels of motor skills. They come in a great reusable plastic jar (PET). The pieces themselves are made from safe and tested polyethylene (PE). The cap of the jar is made from polypropylene (PP). Our discs are a revolutionary addition to the world of children's and adults' construction toys. - Made in China