Mason Bottle Silicone Sippy Straw Tops

Mason Bottle

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Simply add this top to a regular-mouth glass mason jar or Silicone Mason Bottle to transition baby to a sippy. Then once they've mastered that, add the straw insert to quickly graduate your toddler to a straw cup.


  • Converts from sippy to straw top
  • Bite-proof money-back guarantee
  • 100% Silicone
  • Easy to clean—nowhere for mold to hide
  • X-cut flow control to minimize messes
  • Made in the USA



  • 2 silicone sippy tops
  • 2 silicone removable straws