High quality: recycled plastic with cement filled provides the best weather and sun protection outside Tightening Knob: 2 handy Knobscan lock and secure the umbrella to the base stably Versatile: adjustable spacer parts perfectly fits 1.3 (32mm), 1.5 (38mm) and 1.9 (48mm) diameter umbrella pole, suits most 7-11 feet market parasol umbrellas through a table or freestanding for porch and yard Design: antique cast iron look with art deco pattern adding extra charm and elegance Easy Assembly : all necessary accessories are included, follow instruction to finish the installation without additional tools ASIN B0DMZNDR8V Item Weight 39.7 pounds Manufacturer C-Hopetree Item model number CHTSNB02-18SQBLK Product Dimensions 17.9 x 17.9 x 13.4 inches