The Spring Drum Thunder Tube is a Remo original that features a thunder- like effect that kids love. Constructed with an Acousticon® shell, a fixed spring, and Fiberskyn® drumhead material. Covered in a lightning graphic, the Spring Drum Thunder Tube causes the spring to vibrate when shaken, creating thunder-like sounds. Ideal for Recreational and sound effects applications. Available in various finishes. Size: 2.32" x 7".