Zoob Jr Express Train SetALL ABOARD!!! 35 pieces of locomotive action! Zoob Jr. means great for the youngins. And Zoob in general means tons of building fun. Now the Zoob pieces kids love are available in a new style that is even more kid friendly. Specially designed for small hands, the larger pieces are soft and bend, move, and snap together snugly. A little info on Zoob: ZOOB is an award winning building set with a difference = the pieces move after you put them together.