✴︎ Geo Pillow for Preventing Flat Head Syndrome ✴︎ With Cover M Size (23cm x 33cm x 6cm) I purchased this unused, but my child wouldn't sleep on their back at all, so I'm selling it. It was used for about 10 minutes, once. It's almost new, but it's a used item that has been in someone's hands, so please purchase only if you understand. m(__)m #FlatHeadPreventionPillow #GeoPillow #BabyPillow #DonutPillow