Can the sliding mechanism on the (30oz) lid be disassembled for washing? My milky tea gets inside and is starting to get crusty/flaky...

I have the older version of the lid too. It usually comes out clean if you put it through the dishwasher but needs a good shake afterwards. You can also try holding it sideways under warm running water for a min and then vigorously shake it over the sink. Try the other side and repeat. Do this with the lid closed and opened.

Is there a way to keep the straw from rattling around? I use it in a quiet office and it so noisy.

You can get silicone bumpers that slide onto the straw on either side of the lid, to hold the straw in place and keep it quiet. Some products even come with tips as well as bumpers, in case you don’t care for the metal straw hitting your teeth. Amazon sells them. I have had zero rattling since I started using them, and I enjoy the tips, no burning your lips on a hot straw.

Just got mine in and I love it. I can tell I’ll need more straws so what size should I get? I like the wide straight one. What size is it?

I have a 40oz Beast which I love. I use the metal extra long straws, however, the regular size metal straws can work.

Can u use this cup without the straw

Mine has no vent which makes it difficult to get much liquid out. I’m considering returning it as I don’t like drinking out of a straw.

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Beast 10 oz Tumbler Stainless Steel Vacuum Insulated Coffee Ice Cup Double Wall Travel Flask (Aquamarine Blue)

Beast 10 oz Tumbler Stainless Steel Vacuum Insulated Coffee Ice Cup Double Wall Travel Flask (Aquamarine Blue)

Product ID: 539845415

Details

Brand
Greens Steel
Capacity
10 Fluid
Color
Aquamarine
Material
Stainless
Special Feature
Leak Proof

💧Sweat-free, rust-resistant finish

🔒Leak-proof splash guard lid

❄️24-hour temperature retention

$44.55

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Description

🔥 Sip in Style, Stay Cool or Hot All Day! 🔥

COMPACT POWERHOUSE - Perfectly sized 10oz for on-the-go professionals craving quality without bulk.
ALL DAY TEMPERATURE LOCK - Keeps your coffee hot or iced drinks cold for 24+ hours, so you never settle for lukewarm.
SLEEK SWEAT FREE DESIGN - Matte powder coating with an electro-polished interior ensures no rust, no scratches, and zero condensation.
LEAK PROOF TRAVEL COMPANION - Splash-proof closable lid means no spills, just seamless sipping during your busiest days.
PREMIUM 304 STAINLESS STEEL - Crafted from food-grade 18/8 steel for durability and pure, flavor-free sipping every time.

The Beast 10 oz Tumbler by Greens Steel is a premium, vacuum-insulated stainless steel travel flask designed for professionals who demand durability, style, and superior temperature retention. Featuring a leak-proof lid, sweat-free matte finish, and crafted from high-grade 304 stainless steel, it keeps beverages hot or cold for over 24 hours. Compact and portable, it’s the ultimate reusable cup for coffee lovers and iced drink enthusiasts on the move.

Specifications

ASIN	B0BZX7BG6Y
Age Range Description	Adult
Best Sellers Rank	#1,260 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #31 in Insulated Tumblers
Brand Name	Greens Steel
Capacity	10 Fluid Ounces
Color	Aquamarine Blue
Customer Package Type	Standard Gift Box
Customer Reviews	4.6 4.6 out of 5 stars (81,411)
Finish Types	Matte
Included Components	Lid
Is the item dishwasher safe?	Yes
Item Dimensions W x H	3.8"W x 5.15"H
Item Type Name	Glass
Item Weight	283.5 Grams
Manufacturer	Greens Steel
Manufacturer Part Number	10OZ-AQUABLUE
Material Features	Insulated
Material Type	Stainless Steel
Material Type Free	BPA Free
Model Number	10OZ-AQUABLUE
Number of Items	1
Occasion	Travel
Other Special Features of the Product	Leak Proof
Pattern	Solid
Product Care Instructions	Hand Wash Only, Machine Wash
Product Style	Modern
Recommended Uses For Product	Travel
Reusability	Reusable
Shape	Round
Size	10 Ounces
Specific Uses For Product	Cold Drinks, Hot Drinks
Theme	Holiday
Unit Count	1.0 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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$44.55

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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TrustScore 4.5 | 7,300+ reviews

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