Aroma. Natural crystals with premium fragrances. Fragrances for 45 days. Contains: crystals. Use in any non-food glass container or refills 2 jars. Get creative and use in any non-food glass container to fit the decorative and fragrance needs of any room! Adjust fragrance level by removing or adding crystals to get the ideal intensity for any room. Made from naturally occurring sea salt harvested from the ocean. Made in Mexico.