· SWITCH BETWEEN BREASTFEEDING & BOTTLE FEEDING - Lansinoh’s bottle nipples encourage your baby to use the same feeding patterns they learn while breastfeeding, taking the stress out of bottle feeding· REDUCES NIPPLE CONFUSION - Lansinoh NaturalWave Nipple is clinically proven to reduce nipple confusion for breastfed babies and is part of newborn essentials must haves· INNOVATIVE NIPPLE TECHNOLOGY - Lansinoh’s baby bottles feature our NaturalWave Nipple technology, designed with a wide, textured base and gentle slope making it easier for babies to latch· MINIMIZES GAS-RELATED DISCOMFORT - The anti-colic Air Ventilation System is designed for your baby to release air from the nipple to help reduce symptoms such as gas and colic.· SAFE FOR BABY - Made with 100% soft, flexible silicone, Lansinoh’s bottle nipple is safe, easy to use, and loved by babies and parents· EASY TO CLEAN - Lansinoh’s baby bottles are freezer- and dishwasher-safe with only four pieces, for easy cleaning and assembly