I purchased this item, but ended up buying something else, so it's new and unused. Please note that some baby bottles cannot be sterilized in the microwave. This is a convenient device that sterilizes baby bottles in the microwave in 5 minutes using water. - Brand: Combi - Product Name: Jokin Jo-zu (Sterilizing Jo-zu) - Function: Microwave sterilization - How to use: Sterilize in 5 minutes with water - Made in Japan Thank you for looking.