Philips Avent Microwave Steam Steriliser Bags are a quick, easy and effective way to ensure that bottles and products are sterilised wherever you are. With each bag, bottles can be sterilised in the microwave in just 90 seconds. Each microwave steam sterilizing bag is reusable and can be used to sterilize baby bottles, breast pumps and other baby products in just 90 seconds* Each bag includes a checkbox. By checking the checkbox, you can quickly and easily keep track of how many times each bag has been used. Each bag has a safe handling area. This is a marked area on the bag from which it can be safely taken straight from the microwave. Each pack of microwave steam sterilizing bags includes five individual bags that can be used up to 20 times. This means you can sterilize baby bottles, breast pumps, and other accessories up to 100 times with just one retail pack. Eliminates 99.9% of germs and bacteria Each microwave steam sterilizer bag is proven to kill 99.9% of germs and bacteria. It is recommended to use to sterilize the bottle.