This can be demonstrated by turning the base of the pipe 15-20 degrees - the ball will remain suspended in the air flow even though it is not directly above it. Great educational toy for your child to play High quality wood, polished smooth, not hurt the baby skin Package Includes: 1x Blow pipe + 2 Balls

• Size : pipe length : About 15 cm Ball: About 4cm
• Comes with two styrofoam balls
• A classic science toy that is not only fun but teaches real scientific concepts

Size : pipe length : About 15 cm Ball: About 4cmMYL