Review title is Slimmer chin and cheeks [SEP] These are thick jaw exercisers that really do work. I've bought a few different ones of these but these are firmer and work better. They come in their own carrying cases so you can take them anywhere. I use the carrying case to sanitize them. They can be cleaned with soap and water but the best thing I've found to use to clean them with is toothpaste and I sanitize them with mouthwash. It gives it a better flavor when your biting down on them. These have really helped with my double chin and have made my cheeks slimmer. Great value