G4GADGET 8cm Freezer Blocks Pack of 6 | Reusable Ice Packs for Lunch Boxes, Cooler Bags, Picnic, Travel, Camping & Outdoor Activities | Quick Freeze Design

Brilliant, does the job of keeping my cool bag cool for over 8 hours.

Good value and efficient.Colours bit vivid but you can't miss them.

All good.

Great product and service

I wish I had brought these a long time ago because I do take my own milk to make a cup of tea at work. I tried keeping milk in a flask but it went off and trying to clean the flask was not all ways easy.So now I buy a small pint of milk fom Tesco and I put it in a a plastic container and I pop a couple of these ice blocks in and I am really impressed how they keep my milk nice and cool and fresh all day. I would recommend them definately. And it stays fresh over the five days I am at work. I just remember to pop the milk carton back in my fridge as soon as I get home.

I thought that they were larger than they are however, still keep cans of drink cold in a coolbag

Probably more ideal for picnics. Definitely work and didn't pay a fortune so I'd say they are worth it. They do the job but are quite small.

Handy size for portability. As expected does not last as long as the larger ones would but it comes in useful for fitting in a small lunch cool bag and for my uses - from morning to lunch- keeps the food cool nicely. I tend to use more than one at once.