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Leak Proof Sips, Happy Moments.

Korea’s No.1 Toddler Straw Cup

946,000+

Cups sold annually

30+ Countries

Loved by Moms Worldwide

Patented tech

related to straw nipples

CPSIA Compliant

Tested by a CPSC - verified Laboratories

Zezebaebae
One of the Top 5 Best-Selling Toddler Straw Cup Brands on Amazon US
#1 Best-Selling PPSU Straw Cup

Over 8,000 Reviews ★ 4.5 out of 5.0 Rating
2025 Forbes The 8 Best Straw Cups For Babies Loved By Moms And Experts
“Splurge-Worthy Cup That Rarely Leaks and Grows with them”

Premium PPSU Material

PPSU (Polyphenylsulfone) is a type of high performance polymer. Material commonly used for medical devices requiring repeated steam sterilization. It is incredibly durable and temperature resistant.

PPSU is perfect material for baby bottles or cups. It is a plastic but has the benefits of glass. Which does not absorb odor or color and you can sterilize without any deformation.

There is no better choice.

Now there are two types of PPSU body colors. One is the original PPSU color yellow and the other is dark grey which is newly released.

Try Grosmimi PPSU.

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Weighted Spout kit

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
Shop Now

Weighted Straw kit

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
Shop Now

Straw Kit Stage 1

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
Shop Now

Straw Kit Stage 2

  • Age: +12m
  • Strength: Hard
  • Durability: Strong
Shop Now

Stage2 Nipple only

  • Age: +12m
  • Strength: Hard
  • Durability: Strong
Shop Now

We're answerable!

5.0
Rated 5.0 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
4 reviews
  • TD Profile picture for Tessa D.
    Tessa D.
    Verified Buyer
    Reviewing
    Grosmimi Replacement Straw Kit Stage 2 (12M+)
    I recommend this product
    Baby's Age 6 Months - 2 Years
    Baby's Height 31.5 Inches to 36.5 Inches
    Rated 5 out of 5 stars
    1 week ago
    Replacement straws

    Great replacements, strong and easy to clean. The straw is orthodontically recommended

  • M
    Meghan
    Reviewing
    Grosmimi Replacement Straw Kit Stage 2 (12M+)
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    5 Stars

    Great product

  • AS
    AMY S.
    Verified Buyer
    Reviewing
    Grosmimi Replacement Straw Kit Stage 2 (12M+)
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    replacement

    like them a lot than alternative

  • ML
    Melissa L.
    Reviewing
    Grosmimi Replacement Straw Kit Stage 2 (12M+)
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    5 Stars

    Works well for my 15 month old. Straw doesn'st leak.