Bath & Body Works Fresh Balsam Wallflowers Fragrance Refill is a pack of 6 oil bulbs designed to be used with a wallflower device. The green glass bulbs emit a deodorizing and odor-eliminating scent of eucalyptus, woodland balsam, and cedarwood, making it perfect for any room. The pack includes 3 sets of 2 bulbs, providing long-lasting fragrance.