STURDY 4-PLATE DESIGN: Made with interconnecting pins to lock your umbrella base in place and secure it for hours of enjoyment (Note: Crossbar base not included)
EASY-TO-FILL SPOUTS: Each plate is built with a fill spout and a twist cap to create a water-tight seal for quick and easy refills, ballast disposal, and relocation
HIGH WEIGHT CAPACITY: The plates can hold up to 13.2 liters of water (per plate) or 38.9 pounds of sand (per plate), so your patio umbrella will remain upright in heavy winds
HEAVY-DUTY & WEATHER-RESISTANT: Made of HDPE plastic to withstand impact and constant movement, and treated with a weather-resistant coating