Fillable Umbrella Base 90 LBS Heavy Duty with 2 Wheels-BlackFilled with water sand and mixture ensure stability and safety Draining stays easy with a large spout at the bottom Crafted of sun protective wear resistant and fade resistant HDPE Dual adapters allow a snug fit for different poles Handle and wheels together allow smooth repositioning After emptying it weighs only 6 lbs for easy carrying Pairing with patio table boosts umbrella stability Center pole umbrellas benefit most from this base Fit 1. 5" 1.