You can relax under a stable umbrella with the Outsunny Black Parasol Base. This square umbrella base stand weighs 20kg and offers a steady structure while performing the important task of holding your umbrella in place. This sturdy parasol base features a plastic casing with cement filling, complete with a screw fastening on the pole holder to secure poles. It is recommended for parasols with 32mm, 38mm and 48mm pole diameters. Please measure your umbrella pole diameter in advance to ensure that the base fits well.