This unique 24 piece puzzle from Jericos is sure to provide hours of mind-bending fun and cognitive development. Known as the "Magic Snake", this puzzle challenges users to twist and maneuver the interlocking blocks into a continuous loop without any gaps. Made from durable plastic that can withstand the rigorous task of solving, the blocks are engraved with different geometric patterns like squares, triangles and circles. An excellent toy for children as young as 3 to build problem-solving skills and spatial reasoning. But even adults will find themselves stumped trying to solve this puzzle. Once completed, the solid loop can be stretched into a ruler to measure items. With no small parts that can cause choking, this puzzle is also completely safe for young puzzle masters. The portability and replay value of this brain teaser make it perfect for long car rides or rainy afternoon entertainment.