BW13OC4 13 Tube Chromatic Octave Pack
The pack includes: one 8-note set of Diatonic Tubes (BWDG), one 5-note set of Chromatic Tubes (BWCG), four Octavator Caps, one Color Coded “Whack-A-Doodle-Too!” book for Chromatic and Diatonic Sets, and a convenient carry/storage bag!
