SOFT AND FAMILIAR FEEL: Naturally hygienic, extra-soft, easy to transition between breast and baby bottles, and avoid nipple confusion; made from the highest grade silicone, dishwasher & microwave safe, BPA, PVC, LEAD, and PHTHALATE FREE ANTI-COLIC, GAS-FREE FEEDING: Advanced 360° TRIPLE VENTED non-collapsible nipple design, so babykeeps a perfect latch and no post-feeding fussiness, gassiness, or discomfort; Same soft nipple as theaward-winning Nanobebe breast milk bottle MAXIMUM CONVENIENCE: Stable base prevents tipping on any surface, easy to read volume scale,leak-free, and easy to clean GROWS WITH YOUR LITTLE ONE: Holds up to 9oz; quick snap bottle handles (sold separately) that babieslove to hold encourage development of fine motor skills THE ULTIMATE BABY BOTTLE: Perfect for all your feeding needs (baby formula, milk, water) at all stagesfrom newborns and infants to toddlers Nanobebe Flexy Silicone Baby Bottles, Anti-Colic, Natural Feel, Non-Collapsing Nipple, Non-Tip Stable Base, Easy to Clean - 2-Pack, Grey, 9 oz