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Amazon.com: Duramont Office Chair Base Replacement - Heavy Duty Base To Replace Any Chair Bottom - Strong Aluminum Metal Legs Help Your Desk Chair Last a Lifetime - Universal Standard Size 28"
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VEVOR Swivel Chair Base 28 Inch, Office Chair Replacement Base 320 Pounds, Office Chair Base 5 Inch Stroke Length, Replacement Chair Base with Bottom Plate Base Cylinder and 5 Casters | VEVOR US
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VEVORbrand Replacement Chair Base, Max Weight 350 Pounds, Stroke Length 5 inch, with Bottom Plate Stand Cylinder and 5 Casters, 28 inch, Black - Walmart.com
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