Amazon.com : 4 Pcs Patio Umbrella Parasol Base Stand Hole Ring Plug Cover and Cap, Umbrella Stand Replacement Part with M8 Thread Replacement Hand Knob, Umbrella Base Insert Set for Dia 1.5,1.9
Amazon.com : YFZN Φ2m Striped Beach Parasol, Outdoor Garden Parasol, Sun Shade, Big Sun Umbrella, Terrace Holiday Parasol, Suitable for Swimming Pool, Park, Fishing, Round : Patio, Lawn & Garden