This patio umbrella base keep your patio umbrella securely in place with this 17 in. heavy-duty fillable umbrella base. Constructed from weather-resistant, impact-resistant HDPE with metal hardware, this black square base is designed for long-term outdoor use without fading or cracking. The internal reservoir can be filled with up to 66 lbs of sand, 38.5 lbs of water, or a combined 88 lbs of sand and water to provide reliable stability in breezy conditions. A built-in carrying handle and relatively light 3.5 lb empty weight make it easy to move and position before filling. The adjustable pole holder fits umbrella poles of approximately 1.5 in. and 1.9 in. diameter, making it suitable for most 6 ft to 8 ft market umbrellas. Hand-turn tightening dials lock the pole firmly in place, while the textured, anti-skid base helps keep the stand from sliding on smooth surfaces. Simple, tool-free assembly lets you get your outdoor shade set up quickly on patios, decks, or poolside areas. This versatile weighted umbrella base also serves as an ideal market umbrella base and deck umbrella stand, making it a practical addition to any outdoor setting. Whether you need a umbrella base weighted, this option delivers quality construction and dependable performance. Color: Black textured HDPE base with black metal pole sleeve. Material: HDPE (High Density Polyethylene).