Baby Bottle Color Clear Material Silicone / Plastic UNSPSC Code 42231808 Volume 150 mL The specially designed valve and silicone feeder adjust milk flow to suit whatever your babys needs may be Variable flow rate One-Way Valve Sterile packaging BPA-free Includes: (1) 150 mL collection container, (1)teat, (1)collar,(1) disc,(1) membrane, (1)instructions