These are made from synthetic material and are designed for use with the Kirby Ultimate G (G6), Kirby Diamond Edition (UG "G7"), and Kirby Sentria vacuum cleaners Made prior to 2009. They will also fit the Kirby Heritage II, Legend, Legend II, Generation 3, Generation 4, Generation 5, and Generation 6 "G 2000".

They acheive the HEPA Filtration standard. Package of 2. They are white in color with a round hole with 2 notches in the cardboard.