Engineered to anchor 8 to 9 ft patio umbrellas this 26.5 lb umbrella stand combines a durable Hdpe shell with pre-filled concrete support so no extra water or sand is needed. An elegant iris pattern wraps the exterior and adjustable tightening mechanisms hold umbrella poles measuring 1.5 to 1.9 inches across firmly upright. The Hdpe exterior resists water fading and cracking through extended outdoor exposure.