Thank you for viewing! This is an Oticon product, a replacement filter designed to prevent earwax from entering the hearing aid at the sound entrance. One is unused, and the other is half-used, so I am selling the remaining ones. Therefore, the condition of the item is listed as "Like new." I have confirmed that all 9 pieces are unused. All were in the condition shown in image 5. I do not know the details, so please make your judgment based on the images. Please purchase if you understand that this is a personal inspection and home storage item.