Handheld glockenspiel and resonators are versatile instruments and good tools for teaching. You can choose from brass tone pipes, aluminum or wooden tone bars, depending on the sound you are seeking. Then choose either a handheld resonating box for an individual pipe or bar, or choose a resonance box which holds up to twelve tone bars (not for pipes). These ash wood hand resonators ar available in 4 sizes: size 1 / 3×4.5×25 cm, size 2 / 3×4.5×21 cm, size 3 / 3×4.5×17.5 cm, size 4 / 3×4.5×15.5 cm.