Features: The Nasal Pillow CPAP mask is a comfortable, light weight and good quality, mask for sleep apnea / sleep apnoea. 360¡ã swivel elbow for added comfort while increasing freedom not limited to a fixed position. Multi-standard silicone pad alternative,come with three sizes for different groups of people. It has replaceable headgear, and replaceable parts,so that you don't have to purchase a whole new mask when you need a new replacement part. It is compatible with most standard CPAP machines,fitting on a standard CPAP tube. Specification: Model:Nasal Pillow Mask Color:As pictures shown Material: Silica Gel Gender:Male / Female 3 sizes pillows :S, M, L Weight: 0.35kg Package Include: 1¡ÁHeadgear 1¡ÁFrame 3¡ÁNasal sizes pillows(S M L)