what is the length and width of them

3-1/2"x2"Note there are 10 packs each with 2 warmers. Total of 20 warmers of above dimensions.

Do these require *some* oxygen to work? We want to use them to warm high-altitude balloon electronics.

Yes, the heat is created through a chemical process which requires oxygen.

I bought a pack by grabber about 2 years ago where you could put a partially used warmer and then get it out later….is this still an option?

Once you open the package you have to use it. You can go back 3 or 4 hours later and re-shake the item and you should be able to finish using it.

Will they "go off" and get hot by themselves?

you do not need to shake them ..that will make them hotter faster but shorten the time they will last by a little. Seller Sports-Nuts

Grabber Hand Warmers | Desertcart Malta

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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€ 20.08

Duties & taxes included

In stock

Sold byAmazon MaltaDelivered 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 Malta.

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Description

🔥 Stay warm, stay unstoppable — grab your Grabber Hand Warmers today!

ALL DAY HEAT POWER - Delivers consistent, odorless warmth for over 10 hours—perfect for long outdoor adventures.
EFFORTLESS ACTIVATION - Just remove, shake, and feel warmth in 15-30 minutes—no kneading needed.
VERSATILE WARMTH ANYWHERE - Designed for hands, feet, and body—ideal for hiking, tailgating, or winter workouts.
TRAVEL READY TSA APPROVED - Compact, disposable, and carry-on friendly—never miss a moment of cozy comfort.
TRUSTED BY PROS ADVENTURERS - Top-rated with 4.7 stars and thousands of reviews—join the community that beats the cold.

Grabber Hand Warmers are single-use, air-activated heat packs that provide up to 156°F of odorless warmth for over 10 hours. Compact and TSA approved, they’re perfect for outdoor enthusiasts and professionals needing reliable heat during cold weather activities. Trusted by thousands with a 4.7-star rating, these warmers activate with a simple shake and are designed for hands, feet, and body comfort.

Specifications

ASIN	B007ID2ILQ
Battery Charge Time	7 hours
Best Sellers Rank	#20,795 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #198 in Camping Hand Warmers
Brand Name	Grabber
Color	One Color
Customer Reviews	4.7 4.7 out of 5 stars (4,544)
Global Trade Identification Number	00031626055891
Included Components	10 Hand Warmers
Item Type Name	Grabber Hand Warmers
Item Weight	15.5 ounces
Manufacturer	Kobayashi
Manufacturer Part Number	HWPP10
Material Type	Nylon
Model Number	HWPP10DISPLAYUSA
Number of Items	1
Number of Packs	10
Recommended Uses For Product	Outdoor Activities, Camping, Hiking, Fishing, Hunting, Skiing, Snowboarding, Skating
Reusability	Single Use
Size	Pack of 1
Target Use Body Part	Hands
UPC	031626055891
Unit Count	1 Count
Upper Temperature Rating	156 °F
Warranty Description	limited warranty

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€ 20.08

Duties & taxes included

In stock

Sold byAmazon MaltaDelivered 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 Malta.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.