Refillable cantilever umbrella base uses water, sand, or a mix to add up to 220 lbs of stabilizing weight for your offset umbrella. The HDPE construction resists cracking and is easy to maintain, while the 25 x 32.5 x 9 in body works with the 29 x 20 in T-shaped crossed base to spread contact across the patio surface. A 3-in opening accommodates a compatible umbrella pole, and two built-in wheels with cut-out handles let you reposition the base with less lifting. A large inlet and outlet simplify filling and emptying when needed.