KEPLIN Freezer Blocks for Cooler Bags - Reusable Ice Packs for Lunch box, Travel, Picnic, and Outdoor Activities Multicolour (6 Pack)

Does exactly what suppose to very sturdy good size and thickness work well holds coldness

Very good, keep frozen for ages.

Thought I would take a punt on these as reviews are fairly positive and they are cheap in comparison to other similar products with similar reviews.They arrived undamaged but I was a little concerned that the stoppers on 3 of the units did not appear to be seated correctly, however, they do appear to be firmly in place - I didn't apply too much pressure for fear of breaking them off.The body of the units seem very thin and I would thinking putting too much pressure on them when unfrozen could cause them to split.On first freeze, as others have reported, a couple of the units have a strange localised small bulge on them but otherwise all seems ok. They radiate a lot of cold so that seems good... will be using them in action this weekend so will see how well they last.

Arrived quickly and good value for money.

Great and reusable

These are really convenient to put in my work food bag. They’re small and keep cold all day. Put them in the freezer overnight and put them in my bag for the day!!

Quite small but generally do a fair job I supplement them with used plastic water bottles put in the freezer thecombination lasts six hours or so

Work brilliantly in kids lunch boxes. Easy to clean and store.