The soothers for Lansinoh bottles are BPA- and BPS-free. They have been clinically tested to best suit breastfeeding babies. The design reduces the amount of air that is ingested with the milk, which articles in reducing the likelihood of colic and vomiting. Lansinoh's slow-flow soothers are designed to allow the baby to make peristaltic movements of the tongue, which stimulates the natural development of the mouth and jaw. The wide-mouthed NaturalWave soother encourages sucking similar to the baby's natural sucking at the breast and imitates the same undulating tongue movement, making it easy for the baby to switch between breastfeeding and bottle feeding. Extremely soft and flexible, this 100% silicone soother allows baby to utilise a natural sucking rhythm for a comfortable milk feed. For added soothing comfort, it features the Air Ventilation System (AVS), which further reduces air intake with milk and minimises the chances of colic and vomiting. To meet your baby's changing needs, NaturalWave soothers are available in different flow rates: fast, medium and slow. They are designed to be flexible to allow easy customisation. Recommended for children from birth to 3 months, it is advisable to consider the individual needs of each child. If you notice that your baby is breastfeeding for a long time but is struggling to get milk, consider a soother with a higher flow rate. Hand washing is recommended for cleaning. This product comes in a pack of 2 soothers.