thinkbaby Bottle-to-Straw Conversion Kit
Convert your thinkbaby Bottle or Sippy Cup to the Thinkster Straw Bottle easily with this conversion kit.   

  • Free of Bisphenol-A (BPA), phthalates, nitrosamines, lead, PVC, PET,  and biologically harmful chemicals
  • Includes one thinkster swivel top and straw
  • Quickly converts thinkbaby Sippy Cup into our award winning thinkster!
  • Designed to fit all thinkbaby 9oz bottles
  • No Spill spout!!! features our cross cut design
  • Extra soft, medical grade straw provides easier transition from baby bottle feeding to Sippy Cups to the Thinkster Straw Bottle
  • Perfect for ages 16 to 48 months old
  • Reduces environmental waste and pocketbook waste
  • Dishwasher safe (Top rack recommended) 

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