Quadrilla Advanced Coding Kit Includes 20 building blocks, three pegboards, two ball dispensers, 11 accelerators, five climb rings, eight plastic rising rings, one blue and one red ball balancer, 40 balls, a cloth bag, two ball collectors, six large and two small curved rails, a double-sided spiral and 40 playing cards with challenges. Different directional blocks guide the balls in different directions when passing the trajectory. Great for encouraging logical thinking. Suitable for ages 6 and up.