Grosmimi Replacement Straw Nipple only 4-counts Stage 2 (12 Months+)

The safe material, PPSU, is a lightweight yet highly durable and heat-resistant medical-grade material, making it safer to use without the risk of shattering like glass.

Grosmimi grows with your child! Start with a baby bottle and easily switch to a straw cup by changing the parts—no need to buy a whole new cup.

EASY TEAT: Available in 4 stages:
(Stage 1: 1–3 months, Stage 2: 3–5 months, Stage 3: 5–8 months, Stage 4: 8 months+)

SPOUT: Great for babies (4M+) starting baby food early.

WEIGHTED KIT: Helps babies (6M+) drink from any angle while holding the cup.

STAGE 1 STRAW: A super soft straw (6M+), made from the same material as baby nipples, helps babies transition to straw drinking comfortably.

STAGE 2 STRAW: A firmer straw (12M+) for older babies. The flow is the same as Stage 1, but the silicone is stronger. Switch to Stage 2 when babies start chewing more.

• Silicone straws & mouthpieces: Every 2-3 months
• PPSU bottle: Every 6-12 months
• Replacement timing may vary based on usage.

• First-stage: Softer, for beginners or non-chewers.
• Second-stage: Firmer, for children over 12 months who chew frequently.
• Grosmimi cups come with first-stage straws by default.

It can also be hygienically maintained through various sterilization methods, including boiling, steam sterilization, dishwasher, UV sterilization, and microwave sterilization.

It helps regulate pressure balance when there is a difference between internal and external pressure, requiring a pinch to function properly. This feature is especially useful when there is a temperature difference with external environments, such as warm water, and plays a crucial role in preventing leaks.

If your baby is new to straw cups, the shorter 200ml size is often easier for them to handle. For basic use like water or small quantities of liquids, 200ml is sufficient. If your child drinks more or if you plan to fill it with milk or other beverages, a 300ml cup is recommended.

Unopened items can be returned within 30 days. Customer-remorse returns carry a 15% restocking fee and a $7.99 return label; defective or incorrect items are always free to return. Some items (Alpremio, Comme Moi, food products, gift cards) can't be returned — see our Refund Policy for details.

Yes. All Grosmimi bottles and cups are made from 100% PPSU plastic, which is completely free of BPA, BPS, and phthalates. PPSU is the same material used in medical-grade equipment.

Grosmimi products are designed and manufactured in South Korea. The brand is one of the most trusted baby bottle brands in Korea, widely used in Korean postpartum care centers.