Customizable 330 lb Weight Capacity: Four independent plates each hold up to 82.5 lbs of sand/water mix, providing stable support for 10-15FT cantilever umbrellas in strong winds.

Tool-Free 3-Minute Assembly: Clip-locking system snaps sections together quickly; large fill ports on each board allow easy refilling and emptying without funnels.

Durable Weather-Resistant Material: Made from high-density polyethylene plastic that resists cracking, UV rays, and moisture for long-term outdoor use.

Versatile Universal Fit: 38.58" square base supports most large patio umbrellas; works with crossbase umbrellas (length <35.5", width <1.18").

Sleek Functional Design: Features twist-on sealing caps to prevent leaks and a modern look that complements any patio décor while ensuring hassle-free filling and storage.