Used less than 1 month. My granddaughter preferred nursing to the formula. clean and in perfect condition. I pack all my items with great care. Most Advanced Way to Automatically Make a Warm Formula Bottle In Seconds: Precise mixing technology automatically mixes formula and water to the perfect consistency every time without air bubbles No measuring. no mixing no fusS Fully Customizable: dispense between 2-10 ounces in 1 oz increments, choose from 3 temperature settings (Body Temp., Warmer Than Body Temp., Room Temp.) or dispense water only More Accurate, Consistent, Hygienic & Faster than Hand. Universal Compatibility: Works with virtually all formula brands and all bottle sizes.