Scientifically proven to keep gas away from baby's tummy, with a vented wand to reduce feeding discomfort, the bottles ensure less gas, less stress, and more sleep. The patented vented wand draws air away from the baby's tummy while the silicone teat flexes and stretches like a nipple. It offers speedy self-sterilising, in just three minutes in the microwave and a 100% leakproof with the lid...