Features : -Breash-like shape for easy latch-on -Heat sensing reassurance; color-changing tube turns pink if feed is too hot -Soft and flexible for a natural feeding action -Smooth silicone nipple feels closer to skin -Advenced Anti-Colic with a heat sensing stem -Natural latch nipple and patented vent help baby ingest less air -S -BPA free -9oz / 260 ml