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Customer reviews for Zak Designs 16-oz Stainless Steel Double-Wall Tumbler for Kids with Straw, 2-Piece Set for
Zak Designs 16-oz Stainless Steel Double-Wall Tumbler for Kids with Straw, 2-Piece Set
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4.8 out of 5 stars
stars
133 ratings52 reviews
  1. 5 stars89% (119)
  2. 4 stars6% (8)
  3. 3 stars3% (4)
  4. 2 stars1% (1)
  5. 1 star1% (1)

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Showing 51-52 of 52 reviews
Oct 18, 2025
Reviewer name: Lisa
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

BLUEY CUPS

PERFECT SIZE AND COLORS

Helpful?6G9IT5PH3MDF17842672766
reply from Zak Designs Customer Support

Thank you for taking the time to leave this review. Every member of the zak! family is focused on helping to create everyday smiles, and we hope we did that for you.

Jan 16, 2026
Reviewer name: Sara
2 out of 5 stars
2 out of 5 stars review

Not Leak-Proof

These are 100% not leakproof. I wanted them to be so bad! Ugh still on the hunt for a non-leak proof water bottle! They are very cute though.

Helpful?6G9IT5PH3MDF17842672766
reply from Zak Designs Customer Support

On behalf of the zak! family, we’re sorry that you weren’t 100% satisfied with this product. Please reach out to our amazing Customer Care Team at customerservice@zak.com , and we will do everything we can to remedy this for you.