Replacement set of filters for Premier VinOair Compact tool provide immediate aerating of your wine Works with VinOair Premier Aerator for wine sediment filtering along with the VinOair aerating and pouring capacities To use, simply insert filter in back of VinOair, and slide into place; See pictoral directions on back of box Filter removes easily for washing, hand wash with warm water; Great for giving along with a VinOair Premier Wine Aerator; Each replacement filter measures approximately 2 x 0.5 inches Individually fitted in protective packaging