Offset Patio Umbrella Base 4pcs 176lb - Heavy Duty Square Stand for Cantilever Umbrellas - Black, Water/Sand Filled Outdoor Base

【Heavy Duty Construction】: Crafted from high-quality, weather-resistant plastic; designed to withstand outdoor conditions and provide lasting durability; treated with a UV-resistant coating to prevent fading and degradation 【Stable 4-Plate Design】: Features four square-shaped weight plates designed for cantilever umbrella cross bases; interconnecting pins securely lock plates together; provides superior stability compared to single-base systems 【Refillable for Added Weight】: Each base plate can be filled with up to 176 pounds of water or 132 pounds of sand; offers adjustable weight capacity for varying weather conditions and umbrella sizes; ensuring secure anchoring