This was pulled from a factory sealed ResMed AirFit N20 (nasal) mask kit. It is also compatible with AirTouch N20 models, as well as Air Fit N 2 PLEASE NOTE: ONLY INCLUDED IS THE HEADGEAR STRAP WITH NO CLIPS SHOWN. The part is brand new and unused- NO factory plastic bag or packaging is included. BUY EACH NOW FOR $9.99!! The original and unused part is guaranteed for 7 days. After this period (of if used / worn / damaged), they will be considered to be exactly as described, and the sale is then final. NO PARTIAL REFUNDS. Items must be returned for refund if there are any issues. Shipping costs are not refundable. DISCLAIMER: THIS REPLACEMENT PART does not REQUIRE A PRESCRIPTION, AND IS IN NO WAY ILLEGAL TO SELL WITHOUT A DOCTOR'S NOTE. The only CPAP items which require a prescription (i.e., "Rx Only") are the actual machines and mask frames, which must be fitted to the individual patient. THIS CONSUMABLE ITEM IN NO WAY FALLS INTO ONE OF THESE CATEGORIES.