A security display rack comprising an elongated support member appropriately elevated above a supporting surface and an elongated locking member. The support member has an elongated surface and a plurality of grooves extending through the support member and opening at the elongated surface. Each of these grooves is adapted to have at least a portion of an article inserted therein with the grooves spacing the articles along the support member. The locking member is mounted for movement so that it can open and at least partially close the open ends of the grooves. The locking member has a closed position in which it lies along the elongated surface of the support member and at least partially closes the open ends of the grooves. In the closed position, the articles inserted into the grooves either cannot be withdrawn from the support member of their withdrawal is impeded. The locking member can be locked in the closed position.