The popular Hudson RCI over-the-ear style cannula which has set the industry standard for decades is cost effective and offered in a wide range of configurations. Flexible, contoured lip tab provides a high level of patient comfort. Over-the-ear design provides a comfortable and secure fit. Offered with standard (nonflared) or flared nasal tips. Available with standard or universal. connector and standard or crush-proof STAR LUMEN tubing in a variety of lengths.