4-piece fillable patio umbrella base can be an ideal choice to keep your banana parasol stay upright to withstand strong winds. 4-plate design with a interlocking system is convenient to assemble, move and store. Detachable plates can be stacked together for space-saving. Great bearing capacity is capable to withstand impact and movement in long-term. Fade-resistant & UV resistant coating ensures the color does not fade under all kinds of weather. Practical spouts is very easy to fill up with a twist cap. This cantilever offset umbrella base is easy and quick to assemble.