Coastline Carrying

GROSMIMI Stainless Steel Baby Straw Cup, Spill-Proof, 12M+, 10oz (Bear)

$46.80 USD

~~$60.49 USD~~ $46.80 USD

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color Bear Cherry Dinosaur Olive Peach Unicorn

size 10 Ounces 6 Ounces

From the brand

What is the difference between Stainless Steel 316 and 304, and why do you use both?

We use premium SUS 316 (used in hospital tools) for the inner wall as it offers superior corrosion resistance, ensuring zero metallic taste. We use durable SUS 304 for the outer wall to provide maximum protection against drops and dents.
My cup is leaking from the straw. How do I fix it?

Check if the cross-cut (+) valve is torn. If it is intact, simply pinch the air valve on the silicone base 3–4 times after closing the lid. This equalizes internal pressure (especially from warm drinks) and instantly stops backflow.
What is the difference between Stage 1 and Stage 2 straws?

They share the same leak-proof valve and flow rate. Stage 1 is ultra-soft for sensitive baby gums. Stage 2 uses firmer, high-density silicone built to withstand biting and chewing from older toddlers.
Is the cup dishwasher safe? Which rack should I use?

Yes, it is top-rack dishwasher safe. Keep all parts away from the bottom heating element to protect the materials.
How do I wash the silicone straw without tearing it?

Separate the straw nipple from the tube. Insert your straw brush gently, and twist it side-to-side to clean. Never scrub the brush up and down vertically, as this may puncture the cross-cut valve and cause leaks.