This umbrella stand, specially designed for outdoor dining tables, is only compatible with umbrella poles of 1 to 1.5 inches in diameter, yet it achieves maximum stability with its minimalist profile The entire piece is made of high-density UV-resistant polymer from the United States through one-piece injection molding. It resists the three major problems of metal rusting, dent due to bumps, and seam leakage. Whether it's the scorching desert sun, coastal salt spray, or sub-zero snowfall, the surface is not prone to cracking, fading, or powdering, truly achieving "one purchase, years of peace of mind". The top of the umbrella seat is equipped with an ergonomic EZ Grip handle, which can be lifted with one hand even after sand filling, allowing for easy transfer between terraces, lawns, pool sides or RV campsites. The internal cavity supports three filling schemes - about 50 lb of concrete, about 34.5 lb of crushed stone, and about 37.5 lb of fine sand. It eliminates the risks of shaking and freezing cracking caused by "water injection counterweight", and the weight can be adjusted as needed, yet it always maintains a low center of gravity and is resistant to overturning. The widened ring-shaped foot pads at the bottom prevent moisture from the ground and protect the wooden deck and stone countertop from being crushed. The matte frosted shell is stain-resistant and easy to wipe. It can be washed clean by rain and requires no maintenance throughout the four seasons. Color: Bronze. Material: Plastic.