New improved multiflow teat! <br> The new teat has a 3-vent valve that provides the following benefits:
<ul>
<li>No leakage when collar is tightened or when cap is closed and bottle, teat shaken</li>
<li>Does not collapse with continuous suction, 3-vent valves support air compensation created by vacuum inside</li>
<li>The slit at suction point can be easily opened compared to old teat</li>
</ul>