The Xylotote holds 8 Boomwhacker tubes using sturdy elastic. When opened out it makes the tubes into a 'Boomaphone', like a Boomwhacker xylophone. It will also hold a Boomwhacker songbook and a pair of mallets. Multiple xylototes can be used to lay out full sets of Boomwhackers in a xylophone format. At the end of the session, it rolls up for storage.