Each individual Scent Stem™ is infused with the unmistakable scent of Fir Balsam, Spruce and Tangy Red Fruits with an Australian twist of Minty Eucalyptus. Place your Scent Stems™ onto your Christmas tree. Replace your Scent Stems™ every 30 days to refresh your fragrance or increase their strength. After 30 days the Scent Stems™ can be placed in recycling with other paper products.