€2.44 ex. VAT
Plastic tube that makes a groaning sound when inverted. Listen as the plug slides inside the tube. The pitch will rise as the resonant column of air gets shorter and fall as it gets longer. The Groan Tube enables children develop the following skills: Hand-eye coordination, gripping skills and balance.
Product is 40cm in length.
Colours may vary.
Suitable for 3+
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