Review on TOURIT Reusable Ice Packs for Coolers - Long Lasting Freezer Packs for Lunch Bags/Boxes, Cooler Backpack, Camping, Beach, Picnics, Fishing and More (Set of 4, Blue) by Brian Kingsford

Well I've had them for a few weeks now and they were just what I needed. I am a housekeeper and pack lunch for my wife and sons every day. They kept their dinners perfectly cold until dinner time. Of course it depends on the lunch box/cool box. I threw two each in their lunch bags and when I bring them back at the end of the day they are still cold. I dropped one on a tile floor from about 5 feet and broke the plastic cover but it didn't leak. I like their shape because you can put them on and it makes cooling more even in your box. If you're carrying milk for a baby, it's great because they fit perfectly in the bottle cooler and cool the milk more evenly.