SmartNoggin has developed the NogginStik developmental rattle and parent guide to help parents begin their baby's learning journey. The rattle and parent guide help parents gain confidence in their ability to encourage their baby's brain development beginning at birth, with the hope of helping every baby reach their full potential. 201 Creative Child Magazine Award and 2012 Gold Award winner by the National Parenting Publications Award (NAPPA). Do not mix old and new batteries. NogginStik is not dishwasher safe, but can be gently cleaned by hand.