Photo 1 of Ainiv 4PCS Pool Umbrella Stabilizer Adapter, Thread Pool Umbrella Stabilizer, Fits 1 3/4" Aquastar Pool Umbrella Inserts Only, Pool Umbrella Sleeve Stabilizer, Umbrella Pole Stabilizer (Black)

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Photo 1 of Ainiv 4PCS Pool Umbrella Stabilizer Adapter, Thread Pool Umbrella Stabilizer, Fits 1 3/4" Aquastar Pool Umbrella Inserts Only, Pool Umbrella Sleeve Stabilizer, Umbrella Pole Stabilizer (Black)Photo 2 of Ainiv 4PCS Pool Umbrella Stabilizer Adapter, Thread Pool Umbrella Stabilizer, Fits 1 3/4" Aquastar Pool Umbrella Inserts Only, Pool Umbrella Sleeve Stabilizer, Umbrella Pole Stabilizer (Black)