A toilet brush (1, 1') for cleaning a toilet bowl comprising: - a handle (2, 2') extending along a longitudinal axis and having a connection structure (6, 6'), and - a brush head (3, 3') having a center axis and having a connection structure (7, 7') being configured complementary to the connection structure (6, 6') of the handle (2, 2'), wherein the brush head (3, 3') and the handle (2, 2') can be releasably connected with each other by means of their respective connection structure (6, 6'), wherein the handle (2, 2') further comprises at least one guide structure (4, 4') and the brush head (3, 3') further comprises at least one guide structure (5, 5') being configured complementary to the at least one guide structure (4, 4') of the handle (2, 2'), such that the brush head (3, 3') and the handle (2, 2') can be connected to one another and disconnected from one another in a guided manner, characterized in that the connection structure (6, 6') of the handle (2, 2') and the connection structure (7, 7') of the brush head (3, 3') establish, in a connected state, a rotary connection or a plug-in rotary connection, and in that the toilet brush (1, 1') further comprises a rotary element (9, 9') which is rotatably mounted on the handle (2, 2'), and wherein the rotary element (9, 9') is designed and arranged such that a rotation of the rotary element (9, 9') results in a release of the connection between the brush head (3, 3') and the handle (2, 2'). - a handle (2, 2') extending along a longitudinal axis and having a connection structure (6, 6'), and - a brush head (3, 3') having a center axis and having a connection structure (7, 7') being configured complementary to the connection structure (6, 6') of the handle (2, 2'), wherein the brush head (3, 3') and the handle (2, 2') can be releasably connected with each other by means of their respective connection structure (6, 6'), wherein the handle (2, 2') further comprises at least one guide structure (4, 4') and the brush head (3, 3') further comprises at least one guide structure (5, 5') being configured complementary to the at least one guide structure (4, 4') of the handle (2, 2'), such that the brush head (3, 3') and the handle (2, 2') can be connected to one another and disconnected from one another in a guided manner, characterized in that the connection structure (6, 6') of the handle (2, 2') and the connection structure (7, 7') of the brush head (3, 3') establish, in a connected state, a rotary connection or a plug-in rotary connection, and in that the toilet brush (1, 1') further comprises a rotary element (9, 9') which is rotatably mounted on the handle (2, 2'), and wherein the rotary element (9, 9') is designed and arranged such that a rotation of the rotary element (9, 9') results in a release of the connection between the brush head (3, 3') and the handle (2, 2'). wherein the handle (2, 2') further comprises at least one guide structure (4, 4') and the brush head (3, 3') further comprises at least one guide structure (5, 5') being configured complementary to the at least one guide structure (4, 4') of the handle (2, 2'), such that the brush head (3, 3') and the handle (2, 2') can be connected to one another and disconnected from one another in a guided manner, characterized in that the connection structure (6, 6') of the handle (2, 2') and the connection structure (7, 7') of the brush head (3, 3') establish, in a connected state, a rotary connection or a plug-in rotary connection, and in that the toilet brush (1, 1') further comprises a rotary element (9, 9') which is rotatably mounted on the handle (2, 2'), and wherein the rotary element (9, 9') is designed and arranged such that a rotation of the rotary element (9, 9') results in a release of the connection between the brush head (3, 3') and the handle (2, 2').