Size: none | Color: Multicolor from the supercharged speedster to the wall rocket racer to the squeezable grabber-these contraptions spin, stretch, speed, or spring into action. And they're totally buildable Thanks to Super-clear instructions and step-by-step diagrams. Parents choice Award Winner Includes every brick, gear & axle you need to create 16 unique projects Comes with 105 LEGO bricks Includes a 50 page instructional book with Klutz Certified crystal-clear instructions 1.5+ million copies sold Recommended for children ages 7+