Full 13-Note Set of CHROMA-NOTES® Hand Bells. A full chromatic octave! 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. Five inches tall, the long handles enable players to grasp the bells securely.