Simple Deluxe LGBRLABASECROSS 4-pieces Cantilever Offset Patio Market Umbrella Base Stand with U Locking Square Shape Weights Water or Sand Filled, 176 lbs. Heavy-duty and weather-resistant: Made of HDPE plastic to withstand impact and constant movement and treated with a weather and UV-resistant coating Sturdy 4-plate design: The 4 square shaped weight plates are designed to fit in a cantilever umbrella cross base, made with interconnecting pins to lock your umbrella base in place and secure it for hours (Note: Crossbar base is not included). Easy-to-fill spouts: Each plate is built with a fill spout and a twist cap to create a water-tight seal, can be quick and easy to refill, clean and storage High weight capacity: Can be filled with 176 lbs. of water or 132 lbs. of sand, provides a solid anchor for offset umbrellas and protects them from incidental damage caused by falls and harsh weather Handle design: After emptying the ballast, the plate can be easily moved with the carrying handle. Dimensions (per plate): 19.7 in. Lx 19.7 in. W x 3 in. H. Color: Black.