Luc Et Léa Ergosense Silicone Anti-Colic Teats 0m+ 2 Units are designed to ease the transition from breast to bottle and promote digestive comfort. Thanks to their anti-colic valve, they minimize air absorption, promoting digestive comfort and reducing regurgitations. Their ergonomic shape mimics the natural position of the baby's mouth during breastfeeding. They also incorporate a structural reinforcement to prevent crushing of the nipple, regulate the flow and make feeding more comfortable.for babies from birth and wide neck bottles.slow flow.