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

Its good size and very handy. We used it store some kids items and it kept in right temperature for long time

They do exactly what is required and the coloured ones are fun when you have little ones helping out!

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.

Good Value . Does the job.

I purchased these for use in a cool bag. They arrived quickly and are a great size. They stay frozen for a good period of time and refreeze quickly.

Perfect for small lunch boxes, and managed to stay cold for a whole day for me

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

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!!