The range of sizes, pack quantities and prices for our Poly Flat Pack Systems are shown below. Dimensions are for internal product space. A system consists of 2 components, a set of high density EPS flat panels that make up the box and a specially designed Cassette with locking lid to safely hold the correct amount of Dry Ice pellets that we recommend you use in each system. For companies that ship frozen foods Airfreight, we provide Class 9 Dangerous Goods Labels on rolls of 250. You can buy system components separately by clicking the components link. Click here for more information on this system.