Description: High Weight Capacity:The umbrella base stand can be filled with 52kg of water or 72kg of sand, provides a solid anchor for offset umbrellas and protects them from incidental damage caused by falls and harsh weather. Sealed Knob Design: Using the sealed knob of the umbrella holder to fix it inside the bottom of the umbrella can greatly enhance its stability. Even in windy weather, you don't have to worry about the umbrella being blown down by the wind.Easy to Fill Spouts: There is a handle at the bottom of the umbrella for easy operation. When you want to move the bottom of the umbrella to another position, just pick it up and move it to your desired position. Sturdy 4 Plate Design: The patio umbrella base made with interconnecting pins to lock your umbrella base in place. Suitable for a variety of ground environments, including grass, sand, concrete, etc. No matter where you use it, it can provide you with stable and safety support. Use Occassion:The fillable umbrella base great for commercial and residential Use. Perfect for garden, backyard, porch, poolside, patio, or commercial use. Specification: Material: HDPE Color: Black Size Chart: 48cmx48cmx10cm/18.90inchx18.90inchx3.94inch Package Includes: 1 Piece Umbrella Base Stand Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on line shopping!