The Perfect Solution To Breastfeeding Hands Free System – Great for travelling and busy moms who might need a free hand or need to feed twins. Convenient for feeding while baby is in an infant carrier, baby swing, car seat or while being pushed in a stroller. Simple hands free starter kit feeds babies in an upright position and is easily washed by hand or with a brush. Nipple designed to mimic breastfeeding for mothers who want to switch between breastfeeding and bottle feeding or for babies who are just making the transition to bottle feeding. Soft nipple promotes latch on and reduces spills while nursing. Controlled Air Flow – Leak free venting technology is clinically proven to reduce air build up associated with colic. Also proven to reduce gassiness and ear infections. Approved for babies 3+ months with double vent nipple. Keeps air out to promote a comfortable eating experience. Cap included. Loved by Babies and Mothers Bottles nipples and tubes are made of the highest quality silicone, BPA free, as well as phthalate, PVC and lead free.