Snoopy Pet Bottle Covers - 4 Types These were novelty items for tea pet bottle drinks. Brand new, unused, and unopened. The material is polyester and is stretchy. There are precautions written on the back of the bag. Please refer to the photos. These items have been stored at home for a long time. Are you looking for a pet bottle cover? How about these? If you have any questions, please feel free to ask.