Specs: Features: Round (shape) Material: Plastic (Frame) Maximum Pole Dia Accomodated: 1.9 inches Assembly Details: Adult Assembly Required, Tools Provided Base Dimensions: 12.15 inches (H) x 17.7 inches (W) Compatible With: Market Umbrellas Fillable base: No Required, Not Included: Patio Umbrella Includes: Base Only (Umbrella Sold Separately) Protective Qualities: All-Weather Design Base Length: 17.7 inches Base weight: 20.94 pounds Base weight, approximate when filled: 20.9 pounds Care & Cleaning: Cover or Store Indoors When Not in Use Warranty: 1 Year Limited Warranty.  Features: The umbrella base is crafted from durable resin, boasting waterproof, aging, wear and rust resistance. It is good at keeping shape, securely supporting your umbrellas. Featuring a hand-turn tightening knob and fitting for 1.49inch(38mm) and 1.89inch(48mm) diameter poles. Antique cast iron exterior coupled with bronzed art deco patterns adds charm and elegance to your patio umbrella. Simply insert the umbrella pole with appropriate size into the base and tighten the knobs, also secure the umbrella by tightening the bottom screw and spacers. Package include: 1 x patio umbrella base