Mini Ice Brick - various colours These Mini Ice Bricks are perfect to keep to keep your food cooler for longer in the Mum Made Yum Bento Lunchboxes. Can also be used to keep contents of your Lunchbox cool. Each Ice Brick is pre-filled with special cooling liquid. Simply store in the freezer prior to using, pop into your child's lunchbox or lunch bag and the food will remain cool for longer. Available in : Square: Pink, blue, green Sold individually Features: * Mini size, so they fit perfectly in the Mum Made Yum Bento Lunchbox (when the removable tray is removed). Please note, the bricks do not fit while the tray is inserted * These can also be used outside of the lunchbox in the lunch, school or picnic bag * BPA-free & non-toxic Dimensions: * Square - 7.5cm x 7.5cm x 1.5cm * Rectangle - 10cm x 4cm x 3cm * Weight: 166gms