Specification:Color: BlackMaterial: HDPEDimension (Each Plate): 20" x 20" x 5"Total Sand Capacity: 240 lbs Total Water Capacity: 21.2 gal Combined Fill Capacity: 284 lbsNet Weight: 22 lbsDescription:Support outdoor cantilever and offset umbrellas with this 4-piece fillable umbrella base set designed for patios, poolside areas, gardens, and backyard seating spaces. Each square plate can be positioned around a crossbar stand (not included), creating a stable foundation for outdoor shade setups during everyday use or seasonal gatherings. The fillable design allows each plate to be weighted with water or sand, helping improve stability in breezy outdoor conditions while keeping placement flexible as needed. Constructed from all-weather HDPE material, the base set is designed to resist cracking and fading through regular outdoor exposure. Each lightweight plate includes a built-in handle for easier carrying and repositioning, making it convenient to set up or relocate as outdoor layouts change. When not in use, the stackable design allows the plates to be stored neatly to save space in sheds, garages, or storage areas. Note: Actual product color may slightly vary from the images shown due to lighting conditions during photography and individual monitor or device display settings.