The ResMed Swift FX Dual-Wall Nasal Pillows features dual-wall technology with an integrated flexible chamber, allowing the CPAP nasal pillows to fit into the nose and move with you for a better seal. The item for sale is the nasal pillows cushion for the ResMed Swift FX nasal pillows CPAP mask. This purchase does not include the Swift FX CPAP headgear or mask frame system. The complete ResMed Swift FX mask system is a nasal pillows mask offering nose coverage and sporting a silicone cushion. Its design is a predecessor to today’s popular AirFit series. A prescription is required for the complete mask system.