Tropishade Steel Plate Umbrella Base, 36 lbs, Black One solid A grade high durability steel plate it won't crack or break Low profile base less than 1" thickness so people don't trip on it 20" * 20" square size to increase the base stability. Base weight 36 lbs. Tube can fit 1 3/8", 1 1/2", 1 3/4" umbrella poles Black powder coating finish. HQ base Made in Taiwan Search " tropishade " for a compatible umbrella