This is a set including a bottle sterilizer case, three 240ml Pigeon baby bottles, and an Anpanman portable milk container. The sterilizer case was purchased at Akachan Honpo and has been used extensively. The instructions were discarded, but the usage instructions are printed on the case. It's a microwave sterilizer that uses water. The baby bottles were received as hand-me-downs but were never used and have been stored. They are plastic bottles. The Anpanman portable milk container was used for carrying powdered milk when going out. It was purchased at Nishimatsuya. They are still usable, and I hope someone can use them. Thank you for looking.