A conduit having a flexible tubular body having a first end connectable to a manifold or claw 14 and a free end connectable to a teatcup. Disposed partway along its length are disposed two integrally formed ribs capable of moving about an elbow joint. Each rib consists of two arms connected by an elbow joint about which the arms may move relative to one another. The arms of each rib are substantially planar and meet at a pivot point or elbow to form a substantially inverted V-shape when viewed along its the horizontal axis. The ribs encourage downward movement 5 in the vertical plane about its lateral axis at and away from the apex of each of the inverted V-shaped ribs whilst also resisting lateral movement or even upward movement.