3x4 inch felt air freshener. It is resuable. Package includes scented air freshener plus 3ml extra fragrance oil. Many fragrance oils to choose from: Under the Boardwalk, Speakeasy, Momento Mori, Hieroglyphs, Twenty-Six, Honey & Osmanthus, BR 540, Black Currant & Cashmere, Jasmine & Cederwood, Jasmine & Patchouli, Frankincense & Myrrh, Johnny & June, Dumb Blonde, Tipsy Cowgirl, Cocoa Butter & Cashmere, Beija Flor Cheriosa 68, Bom Dia Bright Cheriosa 40, Spooky Punch, Lost Cherry.