- HIGH WEIGHT CAPACITY: The plates can hold up to 15 liters of water (per plate) or 50 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- and UV-resistant coating
- OFFSET UMBRELLA ESSENTIAL: Provides a solid anchor for compatible umbrellas and protects them from incidental damage caused by falls and harsh weather (Search: SKY5681 or SKY5248); OVERALL DIMENSIONS (per plate): 19.7"(L) x 19.7"(W) x 3"(H); Capacity (per plate): 15L of water, or 50 lbs. of sand