GREATVALUE REPLACEMENT FOR N20 Great value but still work great replacement supplies by Everness Includes 2 pcs cushions you need compatible with AirFit N20 COMFORTABLE GENTLE MATERIAL Pliable material to improve wearing comfort so you dont feel like your whole face is covered Make your sleeping a joy again SNUG FIT RELIABLE SEAL Clicks into the original frame and seals well It seats perfectly and is not bulky No air shooting through the sides EASY TO USE Simple assembly and disassembly for using and cleaning Recommended to replace once a month for one piece RIGHT SIZE FOR CONSISTENT FIT The SMALL size range is 09146 inch of the width of nosewing If you choose the wrong size by mistake please feel free to contact us we will help you solve this problem PATENT PROTECTED This product is protected by Pat D1031973 S offering exclusive features and superior craftsmanship Experience peace of mind with reliable durable performance that stands out in quality and innovation