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

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Grabber Handwarmer 10 Pack (HWPP10)

Product ID: 69526998

Details

Brand
Grabber
Colour
One Color
Material
Nylon
Recommended uses for product
Outdoor Hiking
Size
23 5 cm x 14

📦10 pairs in one pack

🔥7+ hours of heat

⏱️Instant activation in 5 mins

Description

🔥 Stay warm, stay unstoppable — grab your Grabber Handwarmers now!

COMPACT PORTABLE DESIGN - Sized at 9.25" x 5.5", these slim warmers fit seamlessly into gloves or pockets.
QUICK HEAT UP ZERO HASSLE - Activate instantly in just 5 minutes—no charcoal or complicated setups required.
TRUSTED BY ADVENTURERS WORLDWIDE - Highly rated with 4.7 stars and praised for performance on extreme trips like Mount Kilimanjaro.
BULK PACK FOR ULTIMATE CONVENIENCE - 10 pairs in one pack means you’re always ready to conquer the cold with friends or solo.
ALL DAY WARMTH NO BATTERIES NEEDED - Enjoy up to 7+ hours of reliable, air-activated heat—perfect for long outdoor adventures.

The Grabber Handwarmer 10 Pack delivers instant, air-activated heat lasting over 7 hours per pair. Each compact warmer measures 9.25" x 5.5" and comes in a convenient bulk pack of 10 pairs, making it ideal for outdoor enthusiasts seeking reliable warmth during camping, hiking, skiing, and more. With a 4.7-star rating and proven performance in extreme conditions, these single-use warmers are a must-have cold-weather essential.

Specifications

ASIN	B007ID2ILQ
Battery Charge Time	7 Hours
Best Sellers Rank	116,242 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 45 in Disposable Hand Warmers
Brand Name	Grabber
Colour	One Color
Country Of Origin	USA
Customer Reviews	4.7 4.7 out of 5 stars (4,177)
EU Spare Part Availability Duration	7 Hours
Global Trade Identification Number	00031626055891
Included Components	10 individual packs of hand warmers
Item Type Name	Grabber Hand Warmers
Item Weight	15.5 Ounces
Manufacturer	Grabber
Manufacturer Part Number	HWPP10
Material Type	Nylon
Model Number	HWPP10DISPLAYUSA
Number of Items	1
Number of Packs	10
Power Source	Hand
Recommended Uses For Product	Outdoor Activities, Camping, Hiking, Fishing, Hunting, Skiing, Snowboarding, Skating
Reusability	Single Use
Size	23,5 cm x 14 cm
Target Use Body Part	Hands
UPC	031626055891
Unit Count	1.0 count
Upper Temperature Rating	156 Degrees Fahrenheit

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How is product pricing calculated?+

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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