Unlike traditional tumble drying devices our ecoegg dryer eggs contain a hidden gem in the shape of a unique hypoallergenic fragrance stick infused with essential oil that fragrance your clothes in the dryer a patent pending breakthrough the ecoegg dryer eggs make your tumble dryer work more efficiently saving you money every time they also fragrance your clothes and soften them all without the use of any harsh chemicals ecoegg dryer eggs are clinically proven to reduce the time it take