Easy sterilization with water in the microwave! - Brand: Combi - Product Name: Jokin Jo-zu (Sterilizing Jo-zu) - Colors: Cream, Brown - Function: Microwave sterilization - How to use: Add water and heat for 5 minutes - Accessories: Dedicated tray Thank you for viewing. I purchased this after it was recommended by the hospital. I used it for about a month. I am now selling it as my child is one year old and I no longer need it. Please feel free to ask if you have any questions. Thank you.