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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 silicone, straw provides easier transition from baby bottle feeding to Sippy Cups to our straw bottle - The Thinkster. We have won multiple awards based on the ease of transition of our line. The only line that goes from newborn to 48+ months all with the same bottle!!!!!!
- Free of Bisphenol-A (BPA), phthalates, nitrosamines, lead, PVC, PET, and biologically harmful chemicals.
- Includes one thinkster swivel top and straw.
- Perfect for 16 to 48 months
- Reduces environmental waste and pocketbook waste