The Evenflo Silicone Steam Sanitizing Bag is designed to help eliminate dirt from most pump parts, bottles, pacifiers, and more. Made from 100% food-grade silicone, this this patent pending, eco-friendly bag is more durable than plastic alternatives and can be used over and over again, creating less waste for the environment. To sanitize, simply add 2 oz. of water, your microwave-safe items, and place in the microwave for the instructed amount of time. The self-standing bag will maintain a stable upright position while in use, and the Safe-Grip corners provide a place for safer, cooler handling. This durable silicone bag is not only great for sanitizing, but can also be used for snacks, storage, and more.