| Sunnydaze Cast Iron Outdoor Patio Umbrella Base - 18-Inch. Ensure your patio umbrella stays secure with this extra heavy-duty patio umbrella base. Made of durable cast iron, this base will provide your patio umbrella with years of stability and support. Also, the thumbscrew easily secures any pole between 1.5" to 2" in diameter.... - Sunnydaze Cast Iron Outdoor Patio Umbrella Base - 18-Inch. |