The Munchkin Steam Microwave Sterilizer is great for cleaning your baby's feeding supplies without any harsh chemicals, while also taking little space in your kitchen. It is safe, efficient and kills up to  99.9% of bacteria on bottles, nipples, pacifiers, teethers, small toys and breast pump accessories right in the microwave. It can hold up to six 4oz. bottles, or four 8oz. bottles. his compact baby sterilizer fits all standard microwaves and works with both regular and wide-mouth bottles. The "open away" locking tab is designed to safeguard everything inside and prevent accidental opening, too. Includes heat-resistant tongs and large capacity removable basket to remove all items safely and easily. Baby-safe cleaning should always come this naturally!