The storm tube or thunder drum features a tube with a resonant head on the end with a spring attatched to the head. By shaking the tube the long spring begins to move and vibrate the resonant head creating a thunder like sound which is amplified through the top of the tube. The bigger the tube the louder and deeper the sound.
These are perfect for creating atmospheric effects in both music and sound design and are also a fun musical gift for children to enjoy.