KEPLIN Freezer Blocks - Reusable Ice Pack Cooler for Lunch boxes, Travel, Picnic, and Outdoor Activities | Ice Boxes Maintains Cool Temperature for food and Drinks for hours | Multicolour (6 Pack)

Really handy for keeping items cool, I use them to put in the dog bowl to make the water cool for them, but you could use them in lunch boxes as they would fit , they seem sturdy and are made of thick plastic and come in lovely bright colours perfect!

Perfect size freezer blocks. Ideal for slipping in between food in the cooler box. Not used yet but seem good quality. Delivered on time.

Good value

I bought these freezer blocks specifically to help cool down my fish tanks during the recent heatwaves, and they’ve been an absolute lifesaver.Once frozen, they stay cold for a good amount of time. I pop them into ziplock bags and float them in the tanks (never directly in the water) whenever the temperature starts creeping up. They bring the temperature down gradually and safely, without stressing the fish.They’re reusable, don’t leak or sweat much, and freeze quickly—perfect for rotating throughout the day if needed. I also appreciate that they’re compact enough to fit around the tank without being bulky.If you’re an aquarium keeper worried about rising temps in the summer, these are a super handy, low-tech solution. Highly recommend!

Four of these fit perfectly along the bottom of my cooler, which is ideal for keeping food and drink cool from all angles.They freeze quick enough and I haven't noticed any abnormalities in the plastic after freezing, which I have seen in the reviews of some other products.Highly recommend given the price and how many you get

Great! Did the job for the cool box and they stayed frozen for ages

Upon delivery the lid on one of the blocks was loose, meaning some of the liquid inside had come out. Still about 2/3rds full and still works okay as a freezer block. The quality of the product otherwise seems to be good.

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.