ITEM NAME:Pipe Blowing Ball Suspended Classic Childhood Vital Capacity Training Toys #gib Store Home Promotion Hot Item Add to Fav.Pipe Blowing Ball Juggling Suspended Classic Childhood Eduional Vital Capacity Training Toys. Product size: blowing pipe length: about 15cm/5.9"; ball size: about 3cm/1.18". Because the air speed around is small, the pressure is high, the air speed in the airflow is high and the pressure is low, the balls will float in the air unanimously.
