Chugga-chugga, choo-choo All aboard for some fun. The Bruin Pounding Ball Train will capture babies' attention and keep them busy with engaging ball play. Baby can use the soft mallet to pound the balls through the train openings then open the train door to see the balls roll out. Colorful train and ball action fosters hand-eye coordination and cause and effect learning while having fun. The free wheels let your little one drive the train all around. Chunky mallet handle and sturdy train are easy for little hands to grasp and maneuver for lots of interactive play.