The Fisher & Paykel Simplus full face cushion seal is designed for use with the F&P Simplus mask. As the name suggests, the one-piece RollFit seal rolls back and forth on the nose and face, auto-adjusting during sleep to reduce pressure on hard-to-fit areas, like the bridge of the nose, while increasing overall seal and comfort. The RollFit Seal offers integrated stability panels for optimal sealing performance and stability all night long, improving your sleep therapy.