Keep food tasty and chilled for hours with these Freezer Blocks Choose from a pack of 1, 6, 12 or 18  Ideal for lunch boxes, bento boxes, freezer bags and coolers Slim enough to fit into all types of lunch bags, grocery totes and coolers Reusable and durable freezer packs Great for outdoor activities such as fishing, picnic, camping and road trips Use more than one for extra cooling power. Non-toxic and BPA-free Slim rectangular design Dimensions: approx 16.5cm (L) x 10cm (W) Thickness: 2 cm Put ice packs in the freezer overnight- they’re be perfectly frozen in the morning Buying Options:  3.99 pounds instead of 5.99 pounds for 1 pack of freezer blocks - save 33%  7.99 pounds instead of 16.99 pounds for 6 pack of freezer blocks - save 53%  9.99 pounds instead of 34.99 pounds for 12 pack of freezer blocks - save 71%  11.99 pounds instead of 52.99 pounds for 18 pack of freezer blocks - save 77%