Purex Crystals is an in-wash fragrance booster, which provides freshness that lasts for weeks; Use a little or a lot, directly in the laundry10Add Purex Crystals to the start of the wash cycle with detergent; It spends more time with your laundry injecting it with a fresh scent that lasts for weeks, not days10Safe for all loads including towels, activewear & childrens sleepwear10Lavender Blossom - Wander through colorful, sun-lit fields of lavender and give your laundry long-lasting, just-washed freshness10This package includes four 15.5-ounce bottles of Purex Crystals Lavender Blossom in-wash fragrance booster