??This item is for the Comfort Select Nasal Mask by Skynector， It is one of Skynector Original Nasal Masks <br />Mask Sizes:<br />Size L， Length(mm) 202， Width(mm) 121 ， Height(mm) 125.5 <br />Size M， Length(mm) 193.5， Width(mm) 116， Height(mm) 123 <br />Size S， Length(mm) 192.5， Width(mm) 112， Height(mm) 125<br />Package: 1 x Full Face CPAP Mask