The 50 lb. Garden Market Umbrella Base (BG50) by Treasure Garden has a consistent, clean style that will blend well with your umbrella frame finish and the rest of your patio collection. Designed for residential use, this base is built with a cast aluminum shell and a cast iron center to ensure long lasting durability and corrosion resistance. Its dual purpose stem allows you to enjoy your umbrella with a patio table or freestanding. It is available in 5 sleek, rust-proof finishes and will fit any umbrella pole up to 1.5" in diameter. However, if your umbrella pole is larger, you can purchase a 2" aluminum stem to go with this base.