This cement base is a solid choice for outdoor sun umbrellas. It is made of PP shell with iron pole and built-in cement, with an overall weight of 25KG, which provides solid support for the umbrella, effectively prevents tipping and ensures safe use. The base design is simple and practical, capable of adapting to umbrella poles with a diameter of 38mm and 48mm, with wide adaptability and easy installation. Whether it's a patio, terrace or outdoor recreation area, this base can be perfectly integrated to provide solid support for your umbrella. 25KG weight not only increases the stability of the base, but also reduces the shaking when moving, so that your outdoor time is more cozy and comfortable. Choose this concrete base to add peace of mind and stability to your outdoor life.