"Scientifically proven to keep gas away from baby’s tummy, with vented wand to reduce feeding discomfort†. Less gas, less stress, more sleep. Patented vented wand, to draw air away from baby’s tummy Silicone nipple that flexes and stretches like a breast Speedy self-sterilizing, in just three minutes in the microwave* 100% leakproof with the lid (even when it’s turned upside down) It’s also BPA free †In testing vs. 10 leading bottles*Based on placing one bottle in microwaves from 700-1000w" Highlights: Innovative anti-colic technology: Our patented vented wand keeps air away from milk, meaning less air is ingested for a proven reduction in colic symptoms. Natural latch: Our bottle nipples are shaped to encourage a natural latch, reducing air intake and preventing nipple confusion when switching between breast, bottle and back again. Self-sterilizing: Tommee Tippee Advanced Anti-colic bottles can be easily self-sterilized in the microwave in just three minutes. Pace feeding: The soft silicone nipple flexes and stretches like a breast and allows your baby to feed comfortably at their own pace. 100% leakproof: When the screw ring, nipple and cap are all secured, your baby bottle is completely mess-free and leakproof, even if it’s turned upside down. Tommee Tippee SKU:549494 Specifications: Dimensions (Overall): 7 Inches (H) x 9 Inches (W) x 3 Inches (D) Weight: .75 Pounds Suggested Age: Newborn and Up Container Material: Plastic Capacity (Volume): 9 fl oz (US) Safety and Security Features: BPS-Free, BPA-Free Nipple Level: Level 1 - Slow Flow Package Quantity: 3 Industry or Government Certifications: Meets CPSC Standards, Meets CPSIA Standards, Meets ASTM Standards Material: bottle nipple: Silicone Care & Cleaning: Dishwasher-Safe on Top-Rack