Bluapple One Year Combo Pack Produce Freshness Extender for Fresh Fruits and Vegetables to Extend the Life of Produce Keeps produce fresher longer, up to 2-3 times longer! Easy to use. Just place a packet inside the Bluapple, toss in the crisper drawer. Works up to 3 months! Reusable. Just replace the packet inside every 3 months. Cost just pennies a day to help reduce waste of produce spoilage. Saves Money! Certified Organic