Set of 7 bass diatonic Boomwhackers. This set of Boomwhackers extends your range - middle C comes with the regular diatonic set (item 200346, available separately), and this set continues down 7 more notes to C below middle C. These plastic percussion tubes are played by (gently!) striking almost anything - a table, a chair, the floor, your thigh or hand, the side of your shoe... whatever! Different surfaces can produce different sounds, but always the same musical pitch. Includes 7 pitches, starting at C below middle C; a different color is used for each pitch: low C (red)D (orange)E (yellow)F (light green)G (aqua)A (violet)B (fuchsia) Tubes range in length from 24" - 48". Age: 3 years and older