12 Hour Ice Block Pack 5 x 220g (5 x 7.4 Oz) 5 x 12 Hour Ice Block x 220g (5 x 7.4 Oz) Made in Germany Put these ice blocks in your cool box, lunch box and keeps your food and drinks cool for up to 12hhours! The ideal cooling device for picnics, walks, work, travelling or anytime you are on the go! It is re-usable, must be cleaned only with warm water and a dry cloth to dry off.