Teether
GrosmimiBaby Wrist Teether
Free shipping on orders $50+ · Ships in 1-3 business days
Style: Star_Blue
Quantity
About This Item
- A wrist-worn teether for babies beginning to explore textures and soothe sore gums
- Available in three neutral colorways.
Why Grosmimi?
4 reasons parents choose this cup
PPSU Safe Material
FDA compliant material commonly used for medical devices requiring repeated steam sterilization. BPA Free.
Wrist-Worn Design
Fits securely on baby's wrist so it won't drop on the floor.
Food-Grade Silicone
Soft, safe silicone soothes sore gums during teething.
Made in Korea
Manufactured by Grosmimi in Korea.
The Material
Why PPSU matters.
Not all baby bottle plastics are the same. PPSU is an FDA-compliant thermoplastic commonly used for medical devices that require repeated high-temperature steam sterilization — the same class of material trusted for reusable hospital equipment. That stability is why Grosmimi builds every cup and bottle from it.
FDA
Compliant — used for medical devices requiring steam sterilization
BPA Free
Zero Bisphenol A in the material
392°F
Heat resistance — safe from -4°F to 392°F
Peer-reviewed research has measured microplastic release from baby bottles under heat. Findings show polypropylene (PP) bottles release substantially more particles than PPSU and other advanced materials. The directional finding that PPSU is more stable than PP under heat is consistent across studies.
What Parents Say
What parents are saying
“My daughter finally drinks water on her own. The weighted straw was the game changer.”
Sarah M.
Baby: 9mo · Verified
“Switched after reading about microplastics. The PPSU difference is real — doesn't discolor after months.”
Jennifer K.
Baby: 14mo · Verified
“We're on our third Grosmimi — 6oz, 10oz, now the tumbler. Best cups ever. Zero leaks.”
David L.
Toddler: 2.5yr · Repeat buyer
Care & Sterilization
How to sterilize each part
| Method | Bottle (PPSU) | Cap (PP) | Straw/Teat (Silicone) | Weighted Bead |
|---|---|---|---|---|
| Hot Water | ✓ | ✓ | ✓ | ✓ |
| UV Sterilizer | ✓ | ✓ | ✗ | ✓ |
| Dishwasher | ✓ | ✓ | ✗ | ✓ |
| Steam | ✓ | ✓ | ✓ | ✓ |
| Microwave | ✓ | ✗ | ✗ | ✗ |
Tips: Replace silicone parts every 2-3 months, or immediately if torn. Hot water sterilization within 5 minutes. Always disassemble all parts before cleaning.
Certifications
Certified safe
BPA Free
No Bisphenol A in the PPSU material
FDA Compliant
Material used for medical devices requiring steam sterilization
Made in Korea
Manufactured by Grosmimi in Korea
Policies
Shipping & Returns
Shipping
- Free shipping on orders over $50
- Standard shipping: $5.99
- Ships within 1-3 business days
- Delivery: 5-10 business days
Returns
- 30-day return policy
- Items must be unused and unopened
- Contact hello@onzenna.com to start
- Full refund to original payment
FAQ
Frequently Asked Questions
Reviews
What Parents Are Saying
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