The present invention relates to a display arrangement for an injection device for displaying the size of a dose of a medicament, the display arrangement comprising: a housing (60) providing a rotation axis (3) extending in an axial direction (4), a first display member (22) rotatably supported inside the housing (60) with regard to the rotation axis (3) and having at least one cam (32) radially offset from the rotation axis (3), a second display member (24) rotatably supported inside the housing (60) with regard to the rotation axis (3) and arranged axially adjacent to the first display member (24), a coupling member (26) rotatably engaged with the second display member (24), wherein the coupling member (26) is engaged with the at least one cam (32) of the first display member (22) when the first display member (22) is in a predefined angular position or angular range, wherein the coupling member (26) and the first display member (22) are mutually engaged via a retaining arrangement (48) when the cam (32) and the coupling member (26) are disengaged.