Electrifying Atmospheric Sound Tube Shake it in your hand to make LOUD ELECTRIFYING atmospheric sounds! Watch as the metal coil reverberates in the air creating roaring vibrations that channel through the tube get LOUDER and LOUDER the more you shake! Try it in a small room, cave, or any space that has lots of echo. Grab two and try it with a friend and allow the vibrations to flow through your body. Product Details Product size: approx 18 x 6.5 x 6.5 cm Recommended Ages: 3 years + Not suitable for children under 3 years