This item is sold as a set of two. I bought these for my child to use when falling asleep, but I never used them after opening the package at home, and they've been sitting in a drawer. I believe I purchased them around the fall of 2023. One of them has been opened and the bag discarded, and the other has some adhesive residue as shown in the photo. They were only opened, and have never touched the skin, and have been stored in a drawer. I am selling them because I don't plan to use them. No pets, no smokers.