This accessory lowers the pitch one octave. One size fits all Boomwhackers (both the Basic and Bass sets). Each removable end cap easily snaps on either end of a Boomwhackers tube. Set of eight.
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Ayesha M.
The product exactly matches the description. Very satisfied with my purchase.
5 days ago
Meera L.
Smooth transaction and product arrived in perfect condition.
