Aerators are huge right now and Metrokane's is priced below its largest competition and is easier to use. Simply insert aerator in bottle and pour. Make sure that wine is pointed downward at a 45 degree angle for the wine to properly cascade around the clear dome. Upon buying The Rabbit Aerating Pourer, open a bottle of red wine and pour 4 oz. using the aerator and 4 oz. without. Taste the difference. You will be amazed! Comes apart for easy cleaning. Do not put in dishwasher.