Inner bags for baby bottles that eliminate the need for sterilization. - Brand: Kaneson - Type: Inner bags for baby bottles - Features: No need for sterilization or washing - How to use: Simply insert into the baby bottle Thank you for looking. This is a pack of 20, and I've used a few. Would anyone like to try them? There are almost all of them left, and it feels wasteful... I hope they can be useful to someone. You won't need to wash the baby bottle when you're out and about, so I think they'll be very helpful!