This is Combi's Jokin Joos (Sterilizing Case). You just add water and microwave it for 5 minutes to sterilize with steam, no chemicals needed! It has a lid, so you can use it as a bottle case when you're not using the bottles, which is convenient. It also comes with a small item compartment. It was easy to use, so I used it often. There is no damage. This is a used item, so please refrain from purchasing if you are concerned. - Brand: Combi - Features: Design with a lid I am also selling baby clothes and other items. Please check them out if you'd like! Thank you for looking.