All of our lids and straws will fit all bottles and can be interchanged. The internal straw is designed to be used with the sipper lid.
This straw will also fit the Stephen Joseph bottle lids as a replacement.
NOTE: Sipper lids are not intended for children 3 and under. Not intended for chewing or teething. Always use this product with adult supervision. Always ensure the silicone valves are properly installed. Adult assembly required. Do NOT use with hot liquids.
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