This umbrella base provides a firm and sturdy base for holding your parasol and keeping it from tipping over or being blown away. The umbrella holder has a durable granite construction that is very stable thanks to its hefty weight. The granite also has a high-end look and feel that gives the umbrella base a sophisticated appearance that will add a touch of elegance to your outdoor living space and complement your luxurious garden furniture. The tube is made of stainless steel. Additionally, the wheels also make the holder easy to move. The included 2 adapters suit parasol poles with a diameter of 38 mm or 48 mm. It’s very easy to mount your parasol to the base and keep the parasol fastened tight and straight.