baby bottles are deisgned to most closely mimic breastfeeding to reduce bottle rejection and nipple confusion issues

Ultra wide-neck design allows easy cleaning by hand without a brush. Nipple and body is made of 100% safe hygienic silicone

Safe in microwave, boiling water, dishwashers and sterilizers. Tips - If the bottle is leaking,make sure there's not blockage on the vents. You can wash it in running water, or sterilize it in boiling water for 5 minutes.Also,make sure that the nipple, ring, and bottle base is aligned properly and screwed tightly and thoroughly

Naturally hygienic, extra-soft, easy to transition between breast and baby bottles, and avoid nipple confusion; made from the highest grade silicone, non-toxic, dishwasher & microwave safe, BPA, PVC, LEAD, and PHTHALATE FREE.

ANTI-COLIC, GAS-FREE FEEDING: Advanced 360° TRIPLE VENTED non-collapsible nipple design, so baby keeps a perfect latch and no post-feeding fussiness, gassiness, or discomfort; Same soft nipple as theaward-winning Nanobebe breast milk bottle.

baby bottles are deisgned to most closely mimic breastfeeding to reduce bottle rejection and nipple confusion issues

Ultra wide-neck design allows easy cleaning by hand without a brush; Safe in microwave, boiling water, dishwashers and sterilizers

Nipple and body is made of 100% safe hygienic medical grade silicone

Baby Bottles feature innovative and sensible design to most closely mimic natural breastfeeding. Naturally shaped, soft, silicone nipples are ideal for babies who have trouble transitioning from nursing to bottle feeding. Your little one will love to hold onto the skin like, soft and squeezable body that is like no other bottle in the world. And you will fall in love with the wide neck design for brushless, stress free, cleaning bliss. USSE bottles are equipped with truly innovative vents that are smartly designed to prevent colic, while completely eliminating annoying leaks. They are quite possibly the most thoughtful bottles ever made. 150ml/5 ounce bottles come with truly slow flow nipples (1 hole) designed for newborns up to 3 months. 250ml/8 ounce bottles come with medium flow nipples (2 holes) ideal for 3-6 months.