The original and authentic Magformers magnetic geometric shapes. 12 Rainbow Rectangles. | Perfect for brain development, critical thinking and education. | Step-by-step educational idea booklet with follow along ideas and instructions. | 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.