4 Pieces Patio Umbrella Base, Outdoor Cantilever Offset Umbrella Weights w/ U-Locking, 123 lb. Capacity Water or 158 lb. Capacity Sand, BlackFOUR BASE WEIGHTS: These offset patio umbrella base weight, designed for cantilever offset umbrellas, keep your summer garden umbrella upright and in place to provide more shade (cross base not included). FILLABLE DESIGN: Each cantilever umbrella base weights can hold 31 lbs. of water or 40 lbs. of sand. You can also fill it with sand and water to increase the weight. SELECTED MATERIAL: The offset umbrella base is made of HDPE with coating for