Gear driving effect. Increases children's ability to observe. Increases children's cognitive ability. The concept bus will automatically turn and roll in another direction if it bumps into a wall, table or another object in its path. It is the best toy bus gift for your kids to explore the field of bus tech, improve their brain development, etc. Gear Driving Effect- Increases children's observation ability. Rich color. Increase children's cognitive ability. This bus is built with high speed wheels and beautiful flashing LED light. The convenient design of the product makes it look very real. The compact size makes it easier to carry. Place it as a exhibit on display shelf in your office or at your home. Child will be mesmerized as they watch the concept bus roam around.