Specifications:Color: BlackMaterial: HDPEEach Plate Size: 19" x 19" x 3" (L x W x H)Net Weight: 14 lbsIs Assembly Required: NoPackage Includes: 4 x Plates, 4 x PinsDescription:Keep your patio umbrella securely supported with this 4-piece fillable umbrella base designed for outdoor living spaces. The interlocking plate design connects quickly with metal locking pins to create a dependable foundation for offset and cantilever umbrellas. No tools are required, making setup fast and convenient for patios, decks, gardens, and poolside seating areas. Each plate features a wide filling opening with a twist cap, allowing you to add water, sand, or a sand and water mixture based on your preferred weight. Once the outdoor season is over, simply empty the plates and stack them together for compact storage. Integrated handles make the empty plates easier to carry between storage and outdoor spaces. Ideal for relaxing outdoors, entertaining guests, or enjoying shaded seating, this umbrella base offers a practical solution for keeping compatible umbrella cross bases in place throughout the season.