Full 20-Note Set of CHROMA-NOTES® Desk Bells! Comes with its own carrying case! Add bells to your Boomwhacker classroom! This full 20-note set includes bells ranging from low A to high E. The set consists of the diatonic (CNDB-D) , chromatic (CNDB-C) , and extended (CNDB-EX) sets. Also available as individual sets. Manufactured to the highest standards, the top quality construction and accurate intonation make these bells the best value available. The CHROMA-NOTES® colors make it more fun to learn and play along with Boomwhackers! Each metal bell is marked with the proper note and number to help children learn the musical scale. Features: CHROMA-NOTES® colors match the Boomwhackers Highest quality construction Accurate intonation Marked with note and number of musical scale Easy push button Great for early childhood and therapy Set includes 20 bells Range Low A to High E Carrying case included