Reinforce and thicken the base: The base thickness has been increased from 2.5 mm to 4.1 mm, with four reinforcing triangles added to enhance durability and stability in windy conditions. High-quality material: Metal screws are used to help prevent rust, suitable for outdoor use. The base bracket is designed to resist rust when exposed to outdoor elements. Stability module: Includes a securing module for the bottom of the umbrella pole and an additional pipe sleeve to improve stability. The set includes three sleeves with diameters of 1.25 inches, 1.5 inches, and 1.9 inches. Unique design: The bottom of the umbrella stand is sealed to help prevent moisture buildup and potential rust or rot, especially when placed on damp surfaces. Wide compatibility: Compatible with beach umbrellas, traditional patio umbrellas, or large patio umbrellas. The black finish blends well with various outdoor furniture styles and helps save space on decks or patios. Color: Black Material: Metal, wood Package Contents: 1 x Umbrella holder (with installation accessories) Note: Light reflection and differences in display screens may cause slight variations in color. Measurement may vary by +/- 1-3 cm.