Challenge Domino Set - Plenty of 48 Pieces Domino stairs that can also be a tunnel Rotating dominoes that turn Stop the fallen dominoes Ages 3 and up Please see the back (photo 6) for other precautions and instructions. My child played with this for about 2 years. It's clean with no noticeable stains or scratches. All parts are included. A part of the stop piece was white from the time of purchase, but it worked fine. (See photo 4) The box is torn. Please comment if you have any questions. Thank you.