Suggested Retail:$30. 26 lbs. Patio Umbrella Base in Black. A unique blend of resin and concrete makes this Patio Umbrella Base reliable and sturdy. Its black, rust-resistant finish will coordinate with most patio dining and bistro tables with umbrella holes. Use the easy tightening knob to secure your patio umbrella pole to the base (not for use with free standing umbrellas). For safety, it is recommended to crank down your umbrella and remove it from the base when not in use.. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. PAID DELIVERY AND 7 DAY ALTERNATE PICK-UP ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.