2Feature :
Strengthened circle on top is more durable for cross cut.
The unique design on top to reduce the fur on the tongue.
Lengthened air valve on base allows for constant flow of liquid and less ingestion of air, so prevents colic.
For pulpy juices, milk and water.
Suitable for newborns to 6 months babies.
The package case can store the pacifier and smaller articles.

Caution :
Eventhough silicone is the most durable material nipples are manufacturedof, all nipples can eventually crack or wear out, especially when babyis teething. Inspect the nipple before each use and if a crack, tear orpuncture may appear, replace immediately.
Test strength of the nipple by pulling the bulb portion..

To clean: 
Pleaseclean and sterilize before first time use and after each use. Cleannipple with a mild detergent and hot water using a nipple brush or boilfor five minutes.