Soothing (and delighting) babies and parents, Doodle & co's goal has been simple fromthe start: To bring you products that make the day-to-day realities of parenting easier. Step 1 pop the nipple so it stays put. Step 2 Give to baby. Step 3 To retract the nipple, pinch the bubble and mouthguard together on opposite corners. Features: 100% Silicone, BPA FREE, NO PVC, NO PHTALATES Pop to extend nipple. Give to baby. Pinch to close for case free carrying. Before using, sanitize by boiling in water for 5 minutes Suitable from Birth