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The EIO cap and silicone sleeve are designed to fit on most 8oz glass canning jars. This lets you create the perfect glass training cup while using a glass canning jar that most of us already have, or can easily purchase at any grocery store.


  • Qty 1, cap with sip opening
  • Qty 1, silicone sleeve for easy gripping


  • Plastic lid is BPA, Phthalate and PVC free
  • Spill resistant cap and protective sleeve fit most 8 ounce canning jars
  • Promotes correct sipping with less mess
  • No spout to chew, no valve to lose
  • Can be used for water, milk, juice or smoothies
  • Easy grip silicone sleeve
  • Helps transition young children to real glass dinnerware

Product Details

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  • ASIN: B0044TZEM2
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