Pigeon Glass Bottle 5oz (3-Pack) with SS Nipple 0M+The Breastfeeding Experience bottle and nipple were developed with the goal of smooth use in combination with breastfeeding and allowing babies to drink with the same mouth movements as breastfeeding. It supports a baby's proper latch and smooth tongue movements, making breastfeeding a comfortable experience. Latch On: the wavy line on the nipple indicates how deep a baby should latch on. This line serves as a guide for moms and dads who are unsure