Which Philips Avent Natural Nipple do I own?

Both the previous and new Philips Avent Natural Nipples are designed to look and feel like a breast, but only the new Natural Response Nipples are also designed to work like one, releasing milk only when your baby actively drinks.The Natural Response Nipple comes in 5 sizes, and they can be recognized by the following features:•    Slit on the tip of the nipple instead of a hole;•    Swirl design around the petals;•    Grey Philips Avent logo on the bottle.To check whether you have the older or new Natural Response Nipple, please refer to the illustration below.

Philips AVENT BPA Free Natural Newborn Flow Nipples, 2-Pack : Baby Bottle Nipples : Baby

Philips Avent 2pk Anti-colic Baby Bottle Nipple - Fast Flow : Target

Philips Avent Natural Nipple Newborn Flow - 4 Count (Pack of 1 ) : Baby Bottle Nipples : Baby

Dr. Brown's Natural Flow® Wide-Neck Baby Bottle Silicone Nipple

Buy Philips Avent Nipple 9m online

mimics the mother's breast for a natural latch-on and comfortable feeds.

Philips Avent Natural Response Baby Bottle Nipple Thick Feed 6m+ x2

Philips Avent Natural Baby Bottle First Flow Nipple, 2pk, SCF657/23

Philips Avent Natural Baby Bottle Nipples, First Flow, 2-Pack

Dr. Brown's Natural Flow® Wide-Neck Baby Bottle Silicone Nipple