Stabilize your outdoor sun shelter with the half round umbrella base. Featuring a distinctive semi-circular profile, the umbrella stand fits flush against exterior walls or deck balustrades, providing a perfect shading answer for narrow balconies and restricted garden nooks. Crafted from HDPE boasting a diamond pattern, the umbrella base is built to endure harsh weather conditions without losing its luster or structural integrity through the seasons. The fillable base can be loaded with sand or water, allowing users to calibrate the ballast weight for dependable umbrella stabilization. Engineered for broad utility, the semi-round foundation comes equipped with 2 adapters and a rotating knob, accommodating standard 1.5” and 1.9” diameter umbrella poles effortlessly. Installation is remarkably simple and tool-free, while the integrated handle makes relocating or stowing the unit a seamless task. The patio umbrella is not included.FeatureRefillable reservoir ensures a weighted bottom to secure your patio parasol Holding up to 28.5 lbs of water, 40 lbs of sand, 44 lbs of water and sand Designed to be placed against a wall to prevent tipping Unique half round design makes it suitable for half patio umbrella Equipped with an adjustable knob for snug fit Fit for 1.5"-1.9" umbrella pole diameters with 2 adapters Applicable to 7-8 ft patio umbrella Long-lasting HDPE material is anti-cracking and non-fading Lightweight design and convenient cut-out handle make relocation a breeze Classic diamond pattern adds a touch of elegance Simple installation requires no extra toolsSpecificationColor: Black Material: HDPE, Metal Product Dimensions: 24" x13.5" x 11" (L x W x H) Net Weight: 5.5 lbs Water Fill Capacity: 28.5 lbs Sand Fill Capacity: 40 lbs Mixed Water & Sand Fill Capacity: 44 lbs Package Includes: 1 x Half Patio Umbrella Base 2 x Adapters 1 x Users Manual