The Boomwhackers CNDB-20 is a complete 20-note set of CHROMA-NOTES bells that expands the possibilities of teaching music in the classroom or playing for fun. The set contains bells with tones from low A to high E and consists of a diatonic (CNDB-D), a chromatic (CNDB-C) and an extended (CNDB-EX) set.

These bells are manufactured to the highest standards, ensuring excellent quality and precise tuning. The colors of the CHROMA-NOTES chimes match the colors of the Boomwhackers, making it easy to learn and play. Each metal bell is marked with the appropriate note and number according to the musical scale with an easy-to-press button.