Hands - my daughter saw these hands on the internet that were used on infants in hospitals in nicu and older children too. They are stretchy and filled with tiny plastic beads so they can be shaped. When you rub a childs back until they fall asleep but take your hand away and they wake up, you are supposed to be able to used these hands. I traced my husbands XX-large hands, used swimsuit fabric and tiny plastic beads for stuffing. You can help the baby stay on his side while sleeping when he is little too. forget what they are called but I don't think she every used them after all the fuss that she had to have them.