This pack of 4 x fragrance sticks are designed to be used with the Eco Egg dryer eggs and will last approximately 40 dries before they begin to lose their scent.  They will lightly fragrance your clothes but you can of course always use the Eco Egg Dryer eggs without the fragrance stick if you wish.  These are hypoallergenic so are suitable for people with sensitive skin No need for fabric softener  No harsh chemicals