The First Stone Is Knocked Over On The Launch Ramp, The Ramp Slides Down And The "Run" Begins. Thanks To The Rotating Cross Of The Included Ramp, Stones Can Be Diverted At A 90° Angle. If The Last Stone Is Knocked Over At The Top Point Of The Target Ramp, It Falls Down On A Bell And A Ringing Sound Sounds. The Dominoes Are Made From A Sturdy And Robust Plastic Material. The Noris Brand Develops Games With Fun For The Whole Family. Age-Appropriate Skills Are Encouraged.