How big are the two urns at the back of the ceremony site?

We leave our two floral ceremony urns empty for each individual couple to fill themselves! They are 12 inches across at the bottom, 16 inches across at the top, and 12 inches deep. You may fill them with whatever you desire! If it's helpful, we can place a round charger plate inside the urn so that the depth is closer to 5-6 inches, rather than the full 12 inches.