1、REINFORCED AND THICKENED BASE: Not only increase the thickness of the base from 2.5mm to 4.1mm, but also add four reinforcing triangular supports to make deck umbrella stand more indestructible even in bad weather. 2、PREMIUM MATERIALS: 2 extended fixing knobs, 4 expansion studs and 4 hex screws are made of premium metal, which completely avoids the embarrassment of rusty screws, and the patio umbrella base bracket will not rust outdoors. 3、4 STABILIZING MODULES: A special module for fixing the bottom of the umbrella handle is added, together with another 3 PVC pipe sleeves, make the outdoor umbrella more stable and won't wobble even in windy weather. The diameter of the 3 sleeves are 1.25 inches, 1.5 inches and 1.9 inches respectively. 4、UNIQUE DESIGN: Hollow bottom can easily cause to rotting or rusting of the umbrella handle, especially on wet ground. So the bottom of the outdoor umbrella stand is sealed. 5、WIDELY COMPATIBLE: This table umbrella base can be used with beach umbrellas, traditional patio umbrellas or large patio umbrellas. Leave more space for your deck or patio. Item Type: Patio Umbrella Stand Material: Carbon Steel Weight: Approx. 1450g/51.1oz Bracket Size: Bottom Length: Approx. 10.2cm/4.0in Height: Approx. 29.5cm/11.6in 1 x Bracket 2 x Knob Screw 4 x Expansion Screw 4 x Screw 1 x Tube Sleeve