Heavy duty construction: Designed to keep your umbrella securely in place, this base is made from high-density HDPE plastic, providing reliable support for your shade and resisting strong winds. A connective plate at the bottom securely attaches the umbrella pole to the base, enhancing stability, evenly distributing weight, and helping to keep the umbrella upright and balanced, even in windy conditions. Versatile umbrella compatibility: Designed to fit most market umbrellas from 6.5 ft to 8 ft, this base includes three PVC sleeves to accommodate different pole sizes: 1-1/4" (32mm), 1-1/2" (38mm), and 1-9/10" (48mm). Simply choose the sleeve that matches your umbrella's pole diameter, then use the two adjustable knobs to ensure a secure and snug fit. Easy mobility: Built-in handles, two transport wheels, and 360° rotation make it easy to move this base across a variety of surfaces effortlessly, including tile, wood, or concrete. This allows for quick and easy repositioning while ensuring your umbrella stays securely in place when set. Fillable with sand or water: Providing excellent stability to prevent your umbrella from tipping over in the wind, the refillable reservoir can hold up to 50 lbs. of water or 64 lbs. of sand. Simply remove the secure cap on the side to fill the base and empty it out for lightweight portability. (Sand and water are not included). Multi-purpose design: With a contemporary pyramid shape that allows water and debris to roll off easily, this base is a practical choice for patios, decks, or other outdoor spaces. Blending seamlessly with most outdoor décor, it features dimensions of 20" (L) x 20" (W) x 6.5" (H), housing the pole within the base for a clean look. The connective plate allows for easy assembly and disassembly. MAnual and tool included. Designed for easy mobility, the base offers 360° rotation, built-in handles, and two transport wheels for effortless movement across various surfaces. It can be filled with up to 64 lbs. of sand or 50 lbs. of water for added stability (sand and water not included). The contemporary pyramid design ensures water and debris roll off easily, making it ideal for outdoor spaces like patios and decks. This heavy-duty base is made from high-density HDPE plastic. It features a connective plate at the bottom to evenly distribute weight and ensure stability, keeping your umbrella upright. It provides reliable support for shade and resisting strong winds. Compatible with most market umbrellas ranging from 6.5 ft. to 8 ft., it includes three PVC sleeves (1-1/4", 1-1/2", and 1-9/10") for a perfect fit, and adjustable knobs for a secure hold. At 20" x 20" x 6.5", it features well-designed pole housing. Manual and tool included for easy assembly. (Sand and water not included).