As an excellent option to toxic dryer sheets, these balls help help dry clothes faster with less static and wrinkles.  This set comes with 2 New Zealand wool dryer balls and a 10 ml. bottle of 100% organic Grosso lavender essential oil.  
 
Add a few drops  of the essential on each ball and toss into the dryer along with the wet laundry.  For extra large loads, additional balls are recommended.  These balls are hypo-allergenic as well as  economical since they can be used multiple times for  years.