I used these twice and then the substance has become solid. No matter how much I boil them, they get back to solid. Have others experienced the same?

It’s a chemical reaction sometimes it takes a little longer than others. Put it into a saucepan of water from cold and bring it to the boil and simmer eventually it will go I promise you. It can drive you up the wall waiting for it to change. It’s a good idea to put a wire mesh at the bottom of the saucepan so it doesn’t come into direct contact with the hot saucepan. This can melt the plastic The longer you leave it to recharge the longer it will take to change it back to A gel. I’ve never had one that one change back eventually usually the kids lose them.

How do you reheat them - can they be microwaved?

Cannot microwave them.Just pop them in a pan of boiling water for about 10 minutes to return them to original state. Found they only kept their heat for about 90 mìns after activation, which is not long for a round of golf.

Do you think they could be used goalkeeping?

Probably a little too large to go in goalkeeping gloves. There are smaller versions of the reusable handwarmer but in our experience they don't last long enough to be helpful.

Hello, you could use the hand warmers to warm up any part of the body, including feet.

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Reusable Hand Warmers

Product ID: 51932786

Details

Brand
Lifesystems
Colour
Orange
Material
Plastic
Recommended uses for product
Dog walks Golf
Size
Pack of 1 pair

🎒ultra-light 118g portable

🔥45 min sustained heat

♻️eco-friendly reusable design

€ 11.62

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Description

🔥 Stay warm, stay unstoppable – your pocket-sized heat hero!

LONG LASTING HEAT - Enjoy up to 45 minutes of soothing warmth at 54°C, ideal for cold outdoor activities.
COMPACT LIGHTWEIGHT - At just 118g, these fit effortlessly in your pocket or bag for anytime warmth.
EASY RECHARGE RESET - Simply boil to reset the gel pads and reuse—sustainable warmth, season after season.
ECO CONSCIOUS COMFORT - Reusable hand warmers reduce waste, perfect for the mindful adventurer.
INSTANT WARMTH ON DEMAND - Activate with a simple click and squeeze for immediate cozy heat—no batteries needed.

Lifesystems Reusable Hand Warmers deliver up to 45 minutes of instant heat at 54°C in a lightweight, eco-friendly design. Perfect for outdoor enthusiasts, these hand warmers activate with a simple click and can be reset by boiling, offering sustainable warmth for camping, hiking, skiing, and everyday cold-weather use.

Specifications

ASIN	B00SVDPGVG
Best Sellers Rank	7,523 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 147 in Rechargeable Hand Warmers
Brand Name	Lifesystems
Colour	Orange
Country Of Origin	China
Customer Reviews	4.1 4.1 out of 5 stars (2,783)
EU Spare Part Availability Duration	45 Minutes
Global Trade Identification Number	05031863424509
Included Components	Reusable Hand Warmers
Item Highlight	Pack of 2 Handwarmers giving 45 Minutes Heat, Recharge by boiling. Ideal for Pockets when Camping, Hiking, Skiing & Walking
Item Type Name	Hand Warmer
Item Weight	198 Grams
Lower Temperature Rating	54 Degrees Celsius
Manufacturer	Lifesystems
Manufacturer Part Number	42450
Material Type	Plastic
Model Number	42450
Number of Items	1
Power Source	Disposable Air-Activated
Product Warranty	2 year manufacturer
Recommended Uses For Product	Dog walks, Golf, Raynaud's relief, Skiing, Walking
Reusability	Reusable
Size	Pack of 1 pair
Target Use Body Part	Hand
Unit Count	1.0 unidad
Upper Temperature Rating	54 Degrees Celsius

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€ 11.62

Duties & taxes included

In stock

Sold byAmazon GERMANYDelivered 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 GERMANY.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Reema J.

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

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