Take it to the next level with the Challenger 30 piece set! The new mini octagon and mini hexagon pieces connect on every other side, to encourage out of the box thinking and stimulate that creativity! Elevate your builds and create new and intricate models with 4 Triangles, 10 Squares, 8 Mini Hexagons, and 8 Mini Octagons like a ukulele or even a dinosaur!