Have fun and learn about music with these 8 polyethylene percussion Boomwhackers tubes perfectly tuned to the C Major scale. Musical fun can begin by simply tapping each on the floor, thigh, hand, table, chair, or the tubes together. The 8 differently colored tubes are labeled with their specific note and measure between 30.5cm(L) up to 63cm(L) and x 1.25cm diameter. Perfect for keeping the children in time or coming up with differentrhythms andcombinations. When played in groups children can learn to play their partsseparatelyto incorporate everyone to make a wonderfully toned musical piece. Set of 8 Boomwhackers® Tubes only. Size: 30.5-63(L) x 1.25cm(W). Ages 3+ years.