C-Hopetree 31 lb Round Heavy Duty Base Stand for Outdoor Patio Market 31lb. Product Dimensions: 18.7 x 18.7 x 13.39 inches. Item Weight: 31 pounds. Item model number: CHTBR065-14BR. High quality: durable resin concrete composite provides the best weather and sun protection outside. Design: antique cast iron look with art deco pattern adding extra charm and elegance. Versatile: adjustable holder to fit 1.5″ (38mm) and 1.9″(48mm) diameter poles. Widely used: suits 7-11 feet market umbrellas through a table or freestanding for porch and yard. Double-lock design: 1 adjustable rotary knobs for securing the umbrella to the base.