Customer reviews
Could not get these to work. Still trying to figure it out.
Joseph M.
Items are great for introduction to sound waves and vibrations.
Dennis R.
Producto muy original y didactico.
Daniel Campillos
Review collected by Feefo
It was interesting even for a teenager.
Cecille Orquiola
Review collected by Feefo
Paul Rose
Review collected by Feefo
One snapped as I was running my thumb nail along it, but otherwise very good.
Simon Rogers
Review collected by Feefo
Good concept but it didn't work as well as we'd hoped.
Becky Dell
Review collected by Feefo
Funny present.
Andreas PflOgler
Review collected by Feefo
Ian Newton
Review collected by Feefo
It takes practice to get them to sound right.
Lukas Schaffner
Review collected by Feefo