Take away fire resistance from babys cloths!! I had no idea.. of course my dumb butt didnt read the box.. and been using the past year with dd. I just bought new ones for both dd and new baby.. while trying to dress dd (which is a major task).. i read the box.. and it says it clearly.. Ugh.. the reason I used was b/c midwife at lamaze advised not using bounty sheets b/c they leave a coating over the cloths that prevents the fire retartion from working. Chat Icon Chat Icon Chat Icon Chat Icon I just thought the dryer balls were to help dry quicker, fluff cloths and take away static.. go figure.. Must read the box before purchasing things..