Engineered to support market umbrellas from 7.5 to 11 ft, this fillable base combines heavyweight stability with practical mobility features that standard concrete stands lack. Rolling wheels let you reposition the fully loaded base across patio surfaces without lifting, while the built-in planter ring adds greenery around the umbrella pole for a finished look. Two included pole adapters accommodate different shaft diameters, and durable resin construction resists cracking and fading.