Are the straws made of silicone?

No, the straw part is a hard plastic, only the top is silicone.

Can you boil the sipper cap for sterilizing?

I don't know about boiling the sipper cap. I do wash it in hot soapy water and use a small brush to scrub it.

Are these for the f400 or f401 models of thermos funtainers?

F401. The F400 tops fit differently and straws are longer.

Do these fit the funtainer f402 bottles?

I don’t know what the f402 is, but they fit the 12 oz funtainer cups.

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Marbe 6pack Replacement Straws for Thermos Funtainer Bottle, Straws Stem Set with Cleaning Brushes，Safe to use for Adult/Children (6 Straws+3 Cleaning Brushes),White

Marbe 6pack Replacement Straws for Thermos Funtainer Bottle, Straws Stem Set with Cleaning Brushes，Safe to use for Adult/Children (6 Straws+3 Cleaning Brushes),White

Product ID: 232780361

Details

Brand
Marbe
Color
White
Manufacturer
Marbe
Material
Silicone
Number of Items
6
Package Size Name
6 Pack

🧴6 silicone straws & stems

🧼3 cleaning brushes included

♻️BPA-free, reusable silicone

Description

♻️ Sip smart, stay stylish—upgrade your hydration game with Marbe!

SAFE NON TOXIC - Crafted from soft, BPA-free silicone that’s odorless and safe for both adults and kids—because your health deserves premium care.
EFFORTLESS CLEANING - Includes 3 specialized brushes to keep every straw spotless, making hygiene a breeze and extending straw lifespan.
PERFECT FIT DURABLE - Designed specifically for Thermos Funtainer 12 oz bottles, ensuring a snug, leak-resistant fit that lasts through toddler adventures.
RISK FREE SATISFACTION - Backed by 100% after-sales service and a full refund guarantee—because we stand by quality and your peace of mind.
ECO FRIENDLY REUSABLE - Say goodbye to single-use plastics with durable silicone straws that reduce waste and elevate your sustainable lifestyle.

This 6-pack replacement straw set for Thermos Funtainer bottles includes durable, BPA-free silicone straws and stems, plus 3 cleaning brushes for easy maintenance. Designed for both adults and children, these odorless, reusable straws ensure a perfect fit and leak-resistant performance, backed by a full satisfaction guarantee.

Specifications

ASIN	B08HLY3LBJ
Best Sellers Rank	#254,921 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #2,302 in Reusable Drinking Straws
Brand Name	Marbe
Color	White
Customer Reviews	4.6 4.6 out of 5 stars (1,839)
Included Components	straw
Item Type Name	6pack Replacement Straws for Thermos Funtainer Bottle, Straws Stem Set with Cleaning Brushes，Safe to use for Adult/Children (6 Straws+3 Cleaning Brushes)
Manufacturer	Marbe
Manufacturer Part Number	ES-ANII12-028
Material Type	Silicone
Model Number	6
Number of Items	6
Other Special Features of the Product	Reusable,Durable
Package Size Name	6 Pack
Size	6 pack
UPC	619438498374 710568496695
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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