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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

Onzenna
You can add detailed text content from various press comments, comprehensive reviews, or extensive customer testimonials here.
You can add detailed text content from various press comments, comprehensive reviews, or extensive customer testimonials here.

Stainless Steel

Stainless Steel is a high-performance material known for its exceptional durability and resistance to rust and corrosion. Commonly used in medical, food, and industrial applications, it is a safe and hygienic choice for various products. Stainless Steel is perfect for baby bottles, cups, and kitchenware as it does not absorb odor or color and maintains its quality even after repeated sterilization. Unlike plastic, it is unbreakable and highly resistant to temperature changes, ensuring long-lasting use. There is no better choice. Now, stainless steel products come in various finishes, from classic silver to modern matte black, offering both style and functionality. Try Grosmimi Stainless Steel.

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Safe, No Polishing Compounds!

Electropolished, not treated with polishing compounds. No residue left behind—just a pristine, premium finish you can trust for safe, everyday use.

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Weighted Spout kit

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
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Weighted Straw kit

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
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Straw Kit Stage 1

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
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Straw Kit Stage 2

  • Age: +12m
  • Strength: Hard
  • Durability: Strong
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Stage2 Nipple only

  • Age: +12m
  • Strength: Hard
  • Durability: Strong
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We're answerable!

4.9
Rated 4.9 out of 5 stars
Based on 42 reviews
Total 5 star reviews: 39 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 0
98%would recommend this product
42 reviews
  • AH
    Asena H.
    Verified Buyer
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (12 Months+)
    I recommend this product
    Baby's Age 2 Years - 8 Years
    Rated 5 out of 5 stars
    3 months ago
    so cute and functional

    love this so cute and functional my daughter obsessed

  • K
    Kamal
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (12 Months+)
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    5 Stars

    I love it

  • BB
    BriAnn B.
    Verified Buyer
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (12 Months+)
    I recommend this product
    Baby's Age 6 Months - 2 Years
    Baby's Height 36.5 Inches to 42.5 Inches
    Rated 5 out of 5 stars
    4 months ago
    Spill proof cup

    I have been through all the straw cups for my 2 toddlers to drink from that do not leak. I have tested this one and it’s the first to actually not leak. Love it and highly recommend!

  • SS
    Sarah S.
    Verified Buyer
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (12 Months+)
    I recommend this product
    Baby's Age 6 Months - 2 Years
    Rated 5 out of 5 stars
    4 months ago
    great, but expensive and loud when dropped

    also a bit heavy for infants to hold

  • K
    Katie
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (12 Months+)
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    5 Stars

    These are the best bottles! We had a couple of other brands when our LO was a little smaller but had we known about these, I would have started with them from the start with the smaller size since they're dishwasher safe.