Features： Suitable for umbrella poles with a diameter of 38mm. Suitable for any terrace table, parasol, courtyard umbrella and other choices. Prevent tilting or shaking caused by wind, helping your patio umbrella to stay upright. Stabilize the patio umbrella to reduce and prevent scratches and dents caused by friction. Can be used in combination with a table and an umbrella to make the umbrella center on the table correctly. Specifications： Material：Rubber Inner diameter：38mm Minimum outer diameter：50mm Maximum outer diameter：69mm Package Included： 1pc x Umbrella Cone Ring.
