Amazon.com : Gardesol Heavy Duty Patio Umbrella Base with Wheels, 79.37lbs, 2 Tightening Knobs, Weighted Square Mobile Market Umbrella Stand for Backyard, Deck, Poolside, Brown : Patio, Lawn & Garden
Tropitone 24" Square Steel Plate Base with Wheels - 2" Pole | SP24S2W
Galvanized Umbrella Base | Serena and Lily
Amazon.com : Best Choice Products 38.5lb Steel Umbrella Base, Square Weighted Patio Stand for Outdoor, Backyard, Market Umbrellas, Sun Shade w/Tightening Knob and Anchor Holes - Black : Patio, Lawn & Garden
Galtech Steel 26'' Square Umbrella Plate Base with Wheels | GL095SQ
Square Steel Umbrella Base | Base for 7.5′, 9′, & 11′ Umbrellas | Powder Coated
Heavy Duty All Metal Umbrella Base | Lush Banners
100 lb. Galvanized Steel Umbrella Base, Under Table Use or Freestanding - Pool Furniture Supply