This item can be sterilized by adding water and microwaving it. It comes with instructions. No box included. 【Brand Reliability】 Combi is a trusted brand known for products for babies and children. It is characterized by designs that emphasize safety and ease of use. 【Functionality】 This Jokin Jo-zu α is a dedicated case for sterilizing and managing the hygiene of baby bottles. It is easy to use and is an essential item for protecting the health of your baby. 【Design】 Blue Limited Color - Brand: Combi - Color: White - Product Name: Jokin Jo-zu α - Purpose: Sterilization and hygiene case for baby bottles Thank you for viewing.