EcommerceHub® Ice Packs for Coolers Reusable Long Lasting Freezer Packs for Cold therapy, Pain Relief Lunch Bags/Boxes, Cooler Backpack, Camping, Picnics, Fishing & More (Set of 4, Blue)

Using it in cooler.Helps lot to keep water cool.

The concept is brilliant. And the blue coolant gel bottles are thin, light weight, easy to handle, freezes quickly and made of some sort of plastic which does not burst in freezer. I have been using it for months now. However it melts faster than I had expected. So I don't think it can be used for keeping things cold during traveling. I use it for air cooler and blower. It works for them However need to change it after every 1 hour. May be due to the heat wave in bangalore. It's worth a buy if to be used at home only not for travel. For outdoors one may need to buy 16-20 bottles and a bag to retain cold temperature. 4 bottles alone will not solve the purpose.

Kept it for 10 hours in freezer still the liquid did not freeze, also does not stay cold for long time

The media could not be loaded.  Great Ice Gel pack.. suitable for multiple mode use gel pack.1 - perfect use for cold storage bag, medicine cool bag, insulin storage bag. Picnic out door drink bags..2 - also it's great replacement of cloth ice bag... I am using single bottle as ice bag.. no need to fill up cool water just put in fridge for 1-2 hrs then it's ready to use its reusable gel pack.. easy to clean.3 - fully sealed & leakage free gel pack.Recommend to buy if you looking for multiple mode use gel pack.Thank you for great product.

its not cooling gel i guess its not make a cool your chiller box for 8 to 9 hrs its woring only 1 hr

Even after keeping it in freezer for two days, the water inside didn't turn into dry ice fully. After compactand insulated packing, it melted inside. Did not hold the coolness, even for a short time. Not satisfied as i used it to preserve my insulin cartridges while traveling over long haul flight.

Cant hold on even for 6-8 hrs after being completely frozen