Giantex 4-Piece Fillable Offset Patio Umbrella Base 420 lbsStabilize your shade setup with a high capacity offset patio umbrella base plate set. Featuring 4 fillable reservoirs, this cantilever patio umbrella and base weight system offers serious counterbalance. Each offset patio umbrella base plate can be filled up to 105 lbs water and sand mixture to build the mass needed for better wind resistance. Constructed from sun proof HDPE, the offset patio umbrella base resists cracking and fading for great