Magic Gel Freezer Blocks - Ice Packs for Cool Box - Ice Blocks for Cool Bags - Cold Pack Lunch Box - Reusable Thin Cold Bag Packs - Slim Gel Pack for Lunch Boxes

Follow the instructions and they'll do the job again and again. Great for small lunchboxes as they are thin. Lasts a good 12 hours and freeze well.

Use these with a chill box. Stay frozen for 35 hours. Put cokes and food in and then you have epic picnic x

These stay frozen for ages really good quality

The best

It's a very nice product

I confess I misunderstood these when I ordered them. I thought they were just bags which you put plain water in and then froze it, so when you’d finished with them, you could just top the water out and store them flat again. I wasn’t quite right there. I have several of those blue ‘ice blocks’ that I keep in the freezer to pop into cool bags to keep drinks cold and similar uses. They are really useful but they’re quite bulky and take up a fair bit of room in the freezer. So the idea of having something similar that you can just empty and store flat when not needed, seemed a good idea. This pack is 5 ice bags do store pretty flat, apart from the slight bump from the plastic caps. So you can keep them in a kitchen cupboard or in the garage, without taking up a lot of space. Where I was confused is that you don’t just fill them with water; well, you do fill them with plain water but the bags come with some granules already inside which then mix with the water to make a special ‘freezing gel’. Obviously, once you’ve done this, you can’t just tip the liquid out of the bag again. The bags are reusable but they won’t store right down flat again. However, having them in compact form for storage before you need them the first time, is a useful feature.

Mine arrived open with granuels all over the bag. Obviously I have no idea about how 'safe' the granules are that fell out on my carpet.... The instructions were a waste of time as mentioned by many others here. The performance when filled and frozen is excellent. I'm slightly dubious about the refillable nature of the caps, from a pet and child perspective I don't want the contents coming out and pouches are less secure than the sold plastic ones I've used for years. However the performance and thinner size have kept this as a 3-star rather than 2 for me. Lost 2 because of instructions and mess of how mine arrived.

These are awful. The instructions are absolutely useless and two of the five had holes in them which meant the granules had leaked out. With a toddler in the house, these went in the bin as simply not worth the risk.

Great value here the all you receive, instantly put these to work and filled up 12 oz in each one and threw in the freezer. I carry a tactical bag with the lower part of the bag being a cooler lunch storage area. These fit perfectly and kept it cool all 8 hours of my shift. 5 stars here cool color combo, easy to use and clean functions just as intended and seem super durable!

Ideal para neveras pequeñas y más grandes dura bastante congelado

Après plusieurs jours d’utilisation Pratique et vraiment efficace pendant plusieurs heures je recommande

Leggero e tenuta del freddo per molte ore

Comodo