Can I put some water in the bottom and freeze it for a long lasting ice cube?

I wouldn't - 1) it would impact the straw fitting in and working and 2) If the top of the water freezes before it is solid it could warp the metal interior. A The opening is wide enough to accommodate large sized cubes anyway so i really don't see a need. We put in a handful of ice maker crescent shaped cubes and it last all day.

Does it keep liquid warm?

I’m not sure we’ve only used them for cold liquids. But work great for cold milk and iced water.

Is there a way to buy extra straws for this? Somehow I lost the straw when I detached it to clean it

Yep! You can for sure do it on the Simple Modern website. Not sure if Amazon sells them as well.

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TMNT Kids Water Bottle & Toddler Cup | 18oz

Product ID: 360352835

Details

Bottle Type
Standard
Brand
Simple Modern
Capacity
18 fluid
Color
TMNT Turtles
Material
Stainless

💧18oz spill-proof capacity

🧼Dishwasher safe convenience

❄️Double-wall vacuum insulation

$54.70

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🥤 Keep hydration heroic with TMNT’s spill-proof, chill-all-day bottle!

COLD DRINKS ALL DAY - Vacuum insulated stainless steel keeps beverages refreshingly cold for hours.
EFFORTLESS CLEAN UP - Top-rack dishwasher safe bottle and lid means less time washing, more time living.
LEAK PROOF CONFIDENCE - Spill-proof straw lid locks tight—no more soggy backpacks or ruined books.
PARENT APPROVED SAFETY - Made with BPA-free, food-grade 304 stainless steel—safe for your little one’s health.
STYLISH SCHOOL ESSENTIAL - TMNT design pairs perfectly with matching lunchboxes and backpacks for ultimate cool-kid vibes.

The Simple Modern TMNT Kids Water Bottle & Toddler Cup is an 18oz insulated stainless steel bottle designed for toddlers and young kids. Featuring a spill-proof straw lid, double-wall vacuum insulation to keep drinks cold for hours, and dishwasher-safe components, it combines durability with convenience. Made from BPA-free, food-grade 304 stainless steel, it’s safe and easy to clean. Perfectly sized for little hands and compatible with most cupholders, this TMNT-themed bottle is a stylish, practical hydration solution for school, travel, and everyday adventures.

Specifications

ASIN	B09BBJNW8X
Additional Features	Bpa-free,Dishwasher,Dishwasher Safe,Double Wall,Vacuum
Age Range Description	Kid
Best Sellers Rank	#272 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #12 in Insulated Bottles
Bottle Type	Standard Bottle
Brand Name	Simple Modern
Capacity	18 fluid ounces
Color	TMNT Turtles Unite
Customer Reviews	4.6 4.6 out of 5 stars (7,261)
Global Trade Identification Number	00191719151951
Included Components	Kid's Summit Bottle, Straw Lid
Item Dimensions W x H	2.9"W x 7.8"H
Item Type Name	Stainless Steel Water Bottle for Kids
Item Weight	11.2 ounces
Manufacturer	Simple Modern
Manufacturer Part Number	SM-S-18-V-TNT-TU
Manufacturer Warranty Description	Limited Lifetime Warranty
Material Type	Stainless Steel
Model Name	Kids Stainless Steel Reusable Water Bottle with Straw Lid
Model Number	SM-S-18-V-TNT-TU
Number of Items	1
Number of Packs	1
Product Care Instructions	Dishwasher Safe
Recommended Uses For Product	Travel, Water
Reusability	Reusable
Shape	Round
Specific Uses For Product	School, Daycare, On-the-go, Sports, Everyday Use
Style Name	18oz
Theme	Movie
UPC	191719151951
Unit Count	1 Count

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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