An intriguing experiment in the science of sonic waves. When you wave these sound tubes around, you produce a spooky whistling sound effect. You can manipulate the noise by varying the speed and trajectory of motion. Each unit includes 24 pieces in colorful display box. For ages 5+.
Party Supplies
Common Questions
Trustpilot
TrustScore 4.5 | 7,300+ reviews
Pooja R.
The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.
1 week ago
Rajesh P.
Customer service was outstanding when I had questions about the product.
