Classroom Rhythm Instruments * | Top 10 Boomwhackers Boomwhackers Octavator Caps 8-Pack

Put One Of These Caps On The End Of A Boomwhacker Tube And You’Ll Lower The Tone By A Full Octave! Play The Tubes As Usual Or Hold Them Vertically And Tap On The Floor As A Stamping Tube. Place On The Higher-Octave Boomwhacker Tubes To Create The Same Tones As The Bass Octave Tubes. Place On The Bass Octave Tubes, And Take Your Boomwhackers Down Another Octave, Making A 3-Octave Range Possible. Set Of 8.