-50lbs heavy weight ensures strong support to patio umbrella-Hand knob on the steel tube secures the umbrella pole-High-grade material for long-lasting serving time-Adjustable pole hole makes it suitable for umbrellas of different sizes-Lockable wheels make movement of the base much easier-Suitable for backyard poolside market entrance and so on.-Rattan Design makes the umbrella base more attractive-Clear instruction and complete accessories for quick assemblyâ- Easy Movement - Equipped with fo