The Blue Thumb Elite Cascade Falls Boxes are designed specifically for Pond-Less setups, offering an alternative to using a big bio-waterfall. Each box comes with a black Matala mat, ensuring the water flows smoothly over the weir. They also include a Landscape Lid to blend into your outdoor environment, a detachable weir, and all the installation gear you need. Plus, you can place them next to each other for more creative waterfall designs and different widths.