These cantilever umbrella weights are a wonderful solution for weighing down the cross base of an offset patio umbrella so the umbrella or base doesn't blow away in harsh winds. The base plate weights are sold in a set of 4. Use all 4 together or use one on each side separately. Each weight features a durable plastic construction with an easy-fill spout so each base weight can be with 33 lbs of water or 50 lbs of sand. The plastic material allows for easy weather-resistance in all harsh weather conditions, sure to keep the patio umbrella and base in place. The circular, simple design is sure to complement any outdoor space and existing aesthetic. For storage after use, simply take the base into its four pieces, and individually pour out the sand or water so easily move the plastic containers anywhere.