This heavy-duty umbrella base, crafted from high-density HDPE plastic, and ensures stability with a connective plate that secures the pole. It fits most market umbrellas with adjustable PVC sleeves, offers 360° rotation for easy mobility, and can be filled with 180 Lbs. of sand or 110 Lbs. of water for added stability, it includes two PVC sleeves (1-1/4" and 1-1/2") Base measures 20” x 20” x 6.5”.