Keep things cool with this twin pack of jumbo gel coolers that are designed to fit snugly inside the b.box insulated lunch bag to keep snacks and lunch cooler and fresher for longer, especially when the weather gets warmer. Reusable non-toxic gel cooler sits inside a machine washable pouch to absorb condensation. Simply handwash and freeze overnight ready to be used again in the morning. Each gel cooler is 20.5cm x 15cm