Upgrade your outdoor setup with this fillable Asscher-design umbrella base, offering reliable stability with up to 55 lbs of sand or 18 L of water for secure placement in any weather. Its versatile steel pole tube fits most 6-10 ft umbrellas with 1.5-1.9"" pole diameters, while the adjustable knob ensures a snug, wobble-free hold. Crafted from high-quality Hdpe with a sleek profile, it's easy to transport, store, and enjoy season after season.