Anchor the patio umbrella with a 31.5 lbs heavy-duty resin base built to outlast seasons of sun and rain. Quality resin construction resists weathering, while a versatile tube design accepts umbrella poles from 1.5 inch to 1.9 inch in diameter for broad compatibility. A retro bronze finish layers vintage character into outdoor settings, and a petaloid hand-turn knob clamps the pole tightly without tools. Compact format fits tabletop or freestanding configurations on decks and balconies.