These Octavator Caps from Boomwhackers lower the tone of the Tubes by an octave. The 8-Pack contains enough caps to use on any standard Boomwhackers set.
$24.99 $19.99$
View Details
$27.99 $22.99$
$48.99 $39.99$
$18.99 $15.99$
$10.99$