A method for producing a bubble level for a spirit level, wherein a transparent, hollow dragonflies body or its bore or other cavity is filled with a liquid containing a gas bubble and provided with one or more color-contrasting markers, the adjustment of the gas bubble and / or the dragonfly cavity are assigned, and the vial cavity is symmetrically interspersed by a reference axis, curve, plane and / or surface, by the following steps: - The vial body is outside the spirit level and / or a profile body of the spirit level with a curve of the reference axis, curve , level and / or surface designed, which course in the adjustment position is completely or punctually with a tangent parallel or perpendicular to an imaginary measuring surface of the spirit level, - the dragonfly body is outside the spirit level and / or the profile body of the spirit level with a cantilevered n or protruding Libellenträger or -halter provided or connected, - one or more support means are formed over one or more outer edges, surfaces, protrusions or other limitations of the Libellenträgers or -halters, each of a complementary support wall or edge of the spirit level assigned.
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