RidgeMonkey CoolaBox Fishing Freeze Packs, If you love fishing, then you'll love the RidgeMonkey CoolaBox Fishing Freeze Packs. These packs are supplied in packs of two, and are designed to fit inside the lid of the RidgeMonkey CoolaBox Compact 12. They are slim, lightweight and have a non-toxic gel filling - making them perfect for taking with you on your fishing trips. What's more, they fully freeze in 12 hours at -18C, so you can be sure they'll keep your bait fresh and chilled all day long.