Roadtime Patio Parasol Hole Ring Plug and Cap Set, Table Umbrella Hole Ring Plug, Umbrella Stand Replacement Part, Umbrella Base Insert Set (1 Hole Ring Plug Set+2 Table Hole Cover)

These umbrella hole ring plugs help the umbrella on the table to stand upright without shaking, no need to worry about tilting or shaking caused by wind. You can choose from 2 sizes of hole covers for your different pole diameters - 1.5" and 1.9" to meet most pole diameter needs. After installation, tighten the M8 40mm thread to replace the handle and adjust the knob to fix it to avoid the umbrell...