Introducing the new Domino Run set for Action & Reaction! With over 150 pieces, including stairs, dominoes, and balls, create thrilling tracks with stunning effects. Line up the dominoes, make them roll, and watch as they all fall over. Expand your existing sets and unleash your imagination with increasing levels of difficulty. Get ready for guaranteed fun! • Lots of dominoes to arrange as you like and special pieces to build new tracks with stunning effects. • Adjust the dominoes to make them roll along the tracks, connect the ladders to make the tracks rise, and connect the dominoes to form maxi-tiles and make them fall! • The set contains more than 150 pieces, including stairs, two “ball rollers”, 75 “dominos”, four balls (two different weights), and instructions on how to build play tracks with increasing difficulty and lots of tips on how to unleash your imagination. 16.5” x 10.9” x 2.4”, 1.5 lbs.