The revolutionary air-free feeding design of our NURSH™ Silicone Pouch Bottle features a 100% silicone pouch that collapses as your little one drinks, squeezing out the nasty gas-inducing air that causes colic. No straws, vents or valves here—so it’s a snap to clean and assemble. The silicone can even be boiled, sterilized, and frozen. Dimensions (Overall): 6.2 Inches (H) x 3.25 Inches (W) x 3.25 Inches (D) Weight: .25 Pounds Suggested Age: 3 Months and Up Features: Anti-Colic Bottles, Wide Neck Bottles, Volume Markings Container Material: Polypropylene, Silicone Capacity (Volume): 8 fl oz (US) Safety and Security Features: BPA-Free, PVC-Free Nipple Level: Level 2 - Medium Flow Package Quantity: 3 Industry or Government Certifications: No Certifications Material: bottle nipple: Silicone Care & Cleaning: Dishwasher-Safe on Top-Rack