These hand-felted dryer balls are a big help when doing laundry! Instead of dryer sheets, just toss the set in the dryer to help get rid of static electricity and wrinkles. One set will last 4 months or more, then can be re-charged! They are so absorbent and lint will stick to them instead of your clothes. These are 100% solid wool and about .3 oz each and 1 oz as a set. They are denseley felted to bounce around more. Add your favorite essential oils ar spray for your signature laundry scent! What a great little gift for any occasion but especially housewarming, moving to college, stocking stuffers, and as a gift basket filler. Care instructions included.