ThermoSafe PolarPack Foam Bricks, Refrigerant Bricks, 16.51 x 11.43 x 3.81 cm, 0.68kg, 24 Pieces/Pack

Refrigerant bricks are vacuum-sealed for consistent weight and shape. These semi-rigid foam bricks never change shape during freezing, thawing or transit, enabling superior surface contact for more consistent temperature control.