Grosmimi Stainless Steel Straw Cup 300ml

As a mom, you never want messes on the go or drinks that lose their temperature in minutes. The Grosmimi Stainless Steel Straw Cup 300ml gives you both: a leak‑resistant, double‑wall insulated cup that keeps milk or water hot or cold for up to 6 hours, so your baby can sip comfortably wherever you are.

The Grosmimi Stainless Steel Straw Cup 300ml features a double‑wall design with an outer layer made from high‑quality SUS304 stainless steel and an inner layer crafted from premium SUS316 stainless steel, offering superior insulation and long‑lasting durability. This helps keep drinks hot or cold for up to 6 hours, making it ideal for outings, daycare, or long‑haul trips.

Designed with internal measurement markings, this cup makes it easy to track how much your baby drinks, helping you manage portions without guesswork. A removable silicone cover provides improved grip and slip resistance, so even wiggly hands can hold it securely. The cup is fully customizable for your baby’s growth: you can switch between different straws and teats or later convert it into a tumbler using Grosmimi accessories, so it grows with your child from 6 to 12 months and beyond.

The leak‑resistant design comes from the special + cut straw opening, which prevents spills and gives you peace of mind during play and travel. All parts can be easily taken apart for thorough, hygienic cleaning and quickly reassembled in just a few seconds, so you can keep your baby’s cup fresh and safe every day.

Technical Specifications

• Double‑layer stainless steel (SUS304 exterior / SUS316 interior)
• Keeps drinks hot or cold for up to 6 hours
• Leak‑resistant straw design with + cut opening
• Easy to clean and assemble; all parts removable
• One‑touch cap, easy for babies to open (metal‑free)
• 360° rotating handles to support baby’s wrist during movement
• Anti‑slip silicone cover for better grip
• Internal measurement markings for portion tracking
• Fully customizable to suit baby’s growth (compatible with replacement straws and teats)
• Capacity: 300ml
• Suitable for babies 6 to 12 months and older toddlers
• Made in Korea

Make every sip safer, cleaner, and more convenient for your baby with the Grosmimi Stainless Steel Straw Cup 300ml. Order yours now and collect directly at the Mummys Market Fair so you can see and feel the quality before you go home.