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Customer reviews for Zak Designs 12-oz. Stainless Steel Double-Wall Tumbler for Kids with Straw, 2-Piece Set for
Zak Designs 12-oz. Stainless Steel Double-Wall Tumbler for Kids with Straw, 2-Piece Set
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4.5 out of 5 stars
stars371 ratings207 reviews
  1. 5 stars77% (285)
  2. 4 stars10% (36)
  3. 3 stars4% (14)
  4. 2 stars3% (12)
  5. 1 star6% (24)

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Showing 161-170 of 371 reviews
Apr 4, 2022
ARW
5 out of 5 stars review

Verified Purchase

child tumblers

Granddaughters love them

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />Thank you so much for taking the time to leave us this review!

Apr 10, 2023
Theresa
2 out of 5 stars review

Verified Purchase

Cups

They leak

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />We apologize for the challenge you have had with your Zak product. We would like the opportunity to make this right. Please contact our Amazing Customer Care Team: customerservice&#64;zak.com.

Jul 23, 2024
Harp
4 out of 5 stars review

Verified Purchase

The cups are just a little heavy for little ones

Love the cups

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Our goal is to give our customers products that help create everyday smiles. Thank you for letting us<br />know we are accomplishing that goal!

Feb 11, 2024
Tina
5 out of 5 stars review

Verified Purchase

Toddler

No spills

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Our goal is to give our customers products that help create everyday smiles. Thank you for letting us<br />know we are accomplishing that goal!

Jun 27, 2022
MSW
5 out of 5 stars review

AMAZING!!

I bought these cups hesitant, but for the price I gave it a try. They are leak proof!. my toddler has throw on the floor so many times... the straw is wide enough to be able to wash it (with a thin brush of course) AND it keeps drinks cold during this Texas weather. I am buying another set to have as a back up in case we loose them or forget them in places because life is like that with toddlers! give it a try!

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />Thank you so much for taking the time to leave us this review!

Mar 31, 2025
Lizzie
2 out of 5 stars review

Leaked everywhere

I bought this as a easter gift for my son.I am so glad that his tumblers broke recently and we need to open it. We have had it a total of two days out of box and a month in the house , it did not fall it was not bitten. Yet it leaks absolutely everywhere. My son absolutely adores it , but the problem is is that if he knocks it over within the 30 seconds it's tipped it leaves a puddle as if he has just dumped it. At first I thought it was straw placement since he would try to take them apart. However even after checking and redoing it it still leaks. I might as well give him a open lid cup

Helpful?15STGC91CF8P13566272598
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&#64;zak.com , and we will do everything we can to remedy this for you.

May 15, 2025
AR
1 out of 5 stars review

Writing just wiped off????

When I first used this I was originally happy. Maybe I got a defective item. But I’m now concerned how the writing was just coming off as I washed the cup for the first time in the sink. I did write Sam’s club and they are sending a replacement. But this does concern me. Especially for a child’s cup. What is making the writing just wipe off? What if my child has put that in his mouth? Is it toxic? What even is that, that makes it just wipe off??? I’ll attach a photo. So weird. We will see how the replacement goes. As of now I don’t recommend

Helpful?15STGC91CF8P13566272598
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&#64;zak.com , and we will do everything we can to remedy this for you.

Mar 9, 2023
Vic
1 out of 5 stars review

Straws easily rip

Grey design but silicone straws rip from the top. Straws don’t appear durable.

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />We apologize for the challenge you have had with your Zak product. We would like the opportunity to make this right. Please contact our Amazing Customer Care Team: customerservice&#64;zak.com.

Jan 1, 2026
KELBY
1 out of 5 stars review

leaks

I wanted to like them, but they leak if they lay on their side.

Helpful?15STGC91CF8P13566272598
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&#64;zak.com , and we will do everything we can to remedy this for you.

Dec 1, 2025
Kristina
5 out of 5 stars review

I wish Blippi would restock. been waiting months.

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Our goal is to give our customers products that help create everyday smiles. Thank you for letting us know.