The invention relates to an aerosol device comprising: a container containing: one or more propellants, and a composition comprising one or more fixing polymers and/or one or more styling powder(s) comprising one or more water-insoluble inorganic compounds, it being possible for the propellant(s) to be present in the composition or, in the container, separate from the composition, a means for dispensing said composition comprising: a body (3) that is open at its two opposite axial ends, an engaging part (10) that is open at its two opposite axial ends, at least partially defining at least one dispensing orifice (12).