Decided to buy the set for our son since it was on offer on a Children's Day. This train set has a very well designed route that features it going around sending some tiny metal balls across to a few stations. Every move was well planned. After performing it's tasks at the last station, the train will move back to the first station and the entire process started again in a endless loop fashion. Our boy was so intrigued by it that he kept staring at the set, trying to figure out the entire process..haha..

-SGMale