It's an empty base ready to filled with water. Here comes a hole on the base to pour water in it to add the weight, so as to keep the base stable.
Easy to assemble,put the plastic insert into the pole hole, screw it down, then your patio umbrella will be perfectly put on the base.
Base can be filled with 30kg water/sand.
Water flooding and sand-filling design, anti-pressure, make it more stable.
Adjust thread grip-per tube size.
Can support beach umbrella, flagpole, wedding arch, etc.
Material: Plastic HD-PE
Size: 38 x 14cm
Suitable Size: 35-38mm Umbrella rod
1 x Patio Umbrella Base Stand