Percussion Plus red plastic wind whistler A413641 3 steel brushes fitted with

3 steel brushes fitted with 3

Covered steel body with anti-corrosion finish

animal pal

Contents include:

floor and kitchen surfaces

Percussion Plus red plastic wind whistler A413641 3 steel brushes fitted withThese whistling tubes or 'noise makers' will keep children entertained for hours, whilst also demonstrating the fascinating physics behind music. To play, simply twirl the red tube around in the air. The air moving through the instrument produces a range of tones, loosely on the harmonic scale. When twirling the Wind Whistler, the air molecules within the tube begin to bump together and these vibrations produce sound waves. When you twirl faster, a