The Avent Classic+ Newborn Starter Set is a set with feeding products that help you get a good start with your baby. The bottles inside the set are easy to assemble and clean. The products in the set are fully compatible with the Philips Avent range. The Classic+ teats have a unique anti-colic valve to allow air into the bottle instead of babys tummy. The new Classic+ bottle is leak-free for a truly enjoyable feeding experience.