Looking for a unique, natural water feature that is sure to impress? The Aquascape Set of 3 Semi-Polished Stone Mongolian Basalt Columns incorporates the sights and sounds of water to any environment, creating a beautiful water feature wherever they are installed. The two smaller columns are roughly 7.5-inches in diameter and the largest column measures about 10-inches in diameter. The set includes stones of three varying heights at 12, 20, and 27-inches high. Aquascape Semi-Polished Basalt Columns are mined from the mountains found between Russia and China, and each piece is handcrafted and polished from natural stone. Once mined and shaped, the columns are drilled to create a stunning water feature. No two columns are the same, providing each stone with unique qualities. Aquascape Natural Mongolian Basalt Columns can be paired with the Aquascape Large AquaBasin, kink-free tubing and Ultra 2000 Pump for a complete setup. Aquascape is passionate about the products we produce, providing unique products, designs, and features that stand above the competition.