Eight Octavator caps to drop the tone of a tube by an octave.
1 7/8" diameter, 1 5/16" overall height.
" Parents' Choice Gold Awards
" Dr. Toy's Best 100 Children's Products
" Oppenheim Toy Portfolio Gold Seal
Play songs, play chords, vary the sounds by 'whacking' different surfaces: same pitch, different sounds.
Each set comes packaged in reusable net bags. Add a cap to drop the tone of any tube by an octave. Package of 8 caps.