its an Ice cube.illustration of ice cube on relative background for animations or movies.its a melting Icecube made in Blender cycles.we made it a small block of ice made in a freezer, especially for adding to drinks.An ice cube is a small piece of ice, which is typically rectangular as viewed from above and trapezoidal as viewed from the side. Ice cubes are products of mechanical refrigeration and are usually produced to cool beverages.