This pack of ice blocks contains two re usable and pre filled plastic blocks that can be placed in a freezer and then used in ice bags boxes and lunch bags. Each freezer block measures 16.5cm x 11.5cm x 1cm and is manufactured using non toxic materials. The low profile design means they can fit in a lunch box or cool box easily and still leave plenty of space for your sandwiches, whilst not taking up too much room in the freezer. Available in pink or blue chosen at random16.5cm x 11.5cm x 1cm 6.5 x 4.3 non toxic materieals