Used once.The Dreft Blissfuls In-wash Scent Booster Beads are a convenient and effective way to freshen up your laundry without the need to use fabric softener sheets. These granules/pellets can be easily added to your washing machine to give your clothes a long-lasting, pleasant scent. The Dreft Blissfuls model offers a hassle-free solution for achieving fresh and aromatic laundry with every wash.