The barriles de bomba are built from the wood of rum storage barrels and goatskin, adjusted with tourniquets, screws, cuñas or wedges.
The wooden surface can be a lying barrel, a piece of hollowed tree or a bamboo, open at both ends.
Before this artefact, a marimba (güiro) was used in some areas of the island instead of the rattle.
The maraca is a shaken idiophone instrument comprising a hollow spherical portion supported by a shaft that passes through or is attached to it.
The interior is filled with small percussive elements, like small stones, seeds or peronia seeds, which produce sound when hit against the inner wall of the sphere.