Just throw one in your dryer when you do a load. Each bag will be good for many loads of laundry. When you notice the scent is diminishing, just add a few drops of lavender essential oil to re-infuse. These bags are also great for keeping in your dresser drawers, closets. Each bag will keep indefinitely in closed small areas. Note: Lavender smell is a natural insect repellent. The size of each bag is 2.5 in by about 4 in. Keep in a dry plastic bag away from heat and sunlight when not in use. Net wt. 0.7 oz/20 g.
