Perfect for brain development critical thinking and education. Step-by-step educational idea booklet with follow along ideas and instructions. Manufacturered by Magformers. Neodymium rare-earth magnets for guaranteed connectivity. Compatible with all Magformers shapes and accessories. Super strong safe and durable BPA-free High Quality ABS plastic. Conforms to CE ASTM and EN71 Ages 3 years and up. The original and authentic Magformers. 8Pc Rainbow Triangles.