The invention refers to a milk conduit, a milk conduit device, a milk-receiving member and a milking member. A known milk conduit presents some difficulty in attachment to the milk-receiving member. Thus, the present invention aims to provide a quick and reliable attachment means. In the invention, the milk conduit (3) comprises a first end portion (31) to be connected to a milk-receiving member. The first end portion comprises an inner sleeve section made of a first material and an outer sleeve section joined to the inner sleeve section (not shown) and made of a second material, which is more rigid than the first material. The outer sleeve section comprises an outer peripheral surface (38) and at least one projection (39) extending outwardly from the outer peripheral surface. The projection has a peripheral extension of less than 180°, and is engaged by a coupling member on the milk-receiving member. The projection (39) comprises an upper side (40) and a raised portion (41), which extends from the upper side (40) and which has an inclined ramp (42), the raised portion (41) having a top surface (43), which is provided adjacent to the inclined ramp (42), and the coupling member (not shown) comprising at least one flange extending inwardly and wherein the projection (39) is configured to cooperate with the flange and to be turned to a position at which the projection (39) is engaged by the flange.