Cantilever Umbrella Base Weights 4pcs 264lbs - Offset Patio Umbrella Stand Holder - Black HDPE - Windproof Support - Water/Sand Fillable

【Heavy Duty Stability】: This umbrella base weight set provides up to 264lbs of weight when filled with sand or 176lbs when filled with water; designed for offset patio umbrellas with a 39.37" x 39.37" cross base, ensuring exceptional stability 【Durable Weatherproof HDPE】: Constructed from thick, high-density polyethylene (HDPE) plastic; this set is UV and water-resistant, ensuring long-lasting performance and preventing wear from outdoor elements; withstands rain, wind, and sun exposure 【Easy Fill & Empty Design】: Each base piece features a convenient spout for quick and effortless filling with water or sand; allows for easy emptying when storing your umbrella during the off-season; simplifies setup and maintenance 【Enhanced Grip & Security】: Unique groove design on the underside of each weight plate provides a secure grip, preventing slippage and maximizing stability; ideal for windy conditions, keeping your umbrella firmly in place 【Universal Compatibility & Specs】: Suitable for most 9-10' offset patio umbrellas; overall dimensions are 39.4" L x 39.4" W x 3.75" H; opening diameter is 2.25"; net weight is 22.5 lbs; crossbar not included; please measure pole diameter