Medela Bottle Nipple Collars Rings New! For Slow or Medium Flow Wide Base (4 Collars)
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<div style="text-align:left"><b>[Product Information]</b></br><ul><li class="showHiddenFeatureBullets"><span class="a-list-item">
                    Spare Medela feeding bottle spare part - collar ring
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                    Can be used only with Medela Wide Base (id: 1 3/16 inches/ 30 mm) Nipples
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                    NOTE: This collar can not be used with Medela Standard Base Nipples
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